1. The filament of a light bulb is made up of:

a) Platinum

b) Tantalum

c) Tungsten

d) Antimony

2. Which of the following is false?

Sound waves are ____________ waves.

a) Pressure

b) Longitudinal

c) Electromagnetic

d) Mechanical

3. Which of the following coloured light has the lowest frequency?

a) Green

b) Blue

c) Red

d) Violet

4. The period of an artificial geostationary satellite is:

a) 8 hours

b) 12 hours

c) 24 hours

d) 46 hours

5. The value of universal gravitational constant G is:

a) 9.8 m/s2

b) 6.673×10-11 N m2 kg-2

c) 6.371 x 106 m

d) 1.738 x 10 6 m

6. What is the unit of the magnitude of the weight?

a) Distance (meter)

b) Mass (grams)

c) Force (Newton)

d) None of the above

7. What is the value of Pi?

a) 3.14159

b) 3.14358

c) 3.14258

d) 3.14289

8. Which of the following is the best electricity conductor?

a) Copper

b) Aluminium

c) Iron

d) Silver

9. Small liquid drops are spherical in shape because

a) of adhesion

b) of gravitational force

c) of the atmospheric pressure from all the sides on the top

d) the liquid tends to have the minimum surface area are due to surface tension

10. The Chandrashekhar Limit is related to which of the following?

a) Stars

b) Black holes

c) Both of these

d) None of these

11. A Light Year is a measure of

a) Light intensity

b) Time

c) Distance

d) None of the Above

12. In the Solar System, asteroids circle between these two planets.

a) Venus and Mars

b) Mars and Earth

c) Mars and Jupiter

d) Jupiter and Saturn

13. Identify the pair that is correctly matched?

a) Madam Curie: X-ray

b) Albert Einstein: Photoelectric effect

c) Linus Pauling: Electron

d) C V Raman: Stark effect

14. Refraction, Reflection, Dispersion and Diffraction are associated with

a) Light

b) Sound

c) Magnetism

d) None of the Above

15. The minimum possible temperature beyond which matter cannot be cooled is in degree Centigrades is:

a) 95.50

b) 100

c) 273.15

d) 473.50

16. Who among the following is credited for discovering the principles underlying electromagnetic induction?

a) Michael Faraday

b) Volta

c) Coulomb

d) Gauss

17. Which of the following statement is correct about Pi?

a) It is non-repeating decimal value

b) It is non terminating decimal value

c) It is repeating and terminating decimal value

d) It is non-repeating, non-terminating decimal value

18. It is on this principle, the quartz clock works.

a) Piezo-electric effect

b) Gauss effect

c) Relativistic effect

d) Mass defect

19. Who has calculated the circumference of the earth and considered the value of Pi = 22/7?

a) Archimedes

b) John Machin’s

c) Aryabhatta

d) None of the above

20. Cryogenic engines find applications in:

(a) sub-marine propulsion

(b) frost-free refrigerators

(c) rocket technology

(d) researches in superconductivity

 

 

 

12 Things You Must Know About the Rashtriya Rifles (RR)

1. The Rashtriya Rifles (RR) is a specialized counter-insurgency force of the Indian Army. 2. It was established in 1990 to combat insurgency and terrorism in Jammu and Kashmir. 3. The primary objective of the Rashtriya Rifles is to maintain peace and stability in the region and assist the civil administration in restoring normalcy. 4. The RR operates under the operational control of the Indian Army and works in close coordination with other security forces, such as the Central Reserve Police Force (CRPF) and Jammu and Kashmir Police. 5. The force is composed of personnel from various regiments of the Indian Army, including officers and soldiers who volunteer for service in the RR. 6. Rashtriya Rifles units are stationed in different parts of Jammu and Kashmir, with a focus on areas affected by militancy and insurgency. 7. The RR conducts a wide range of operations, including counter-insurgency operations, intelligence gathering, area domination, and humanitarian assistance. 8. The force is trained in specialized counter-insurgency tactics, including guerrilla warfare, jungle warfare, and urban combat. 9. Rashtriya Rifles units work closely with the local population to gain their trust and support, thereby weakening the influence of insurgents. 10. The RR has been successful in neutralizing several prominent militants and terrorist organizations operating in Jammu and Kashmir. 11. The force is also involved in various civic action programs, such as organizing medical camps, vocational training, and educational initiatives for the local population. 12. The Rashtriya Rifles has played a significant role in restoring peace and stability in Jammu and Kashmir and continues to be actively involved in counter-insurgency operations in the region.

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About Colonel Geeta Rana First Woman Commanding Officer in Ladakh

The Indian Army recently made history by empowering female officers in leadership posts. This move opened up many opportunities for female officers in various branches of the military, including the Corps of Engineers, Orderlies, and Electrical and Mechanical Engineers (EME). One such officer, Colonel Geeta Rana of the Mechanical and Electronic Engineers Corps, became the first female officer to take command of an independent field workshop in a remote location in eastern Ladakh, which is currently facing tensions with China . This appointment is a significant step towards gender equality and empowerment in the Indian Armed Forces. The Army has released 108 vacancies for female officers in command of independent units, and many female officers have already been filled. More lists are expected to be announced as dashboards are compiled and results are released. Female officers who clear recommendations will be given leadership roles and may also be considered for future promotions to higher ranks in the military. This move is a testament to the Indian Army’s commitment to gender equality and equal opportunities for female officers in the force. In addition to this, the Army has also begun deploying female soldiers in joint exercises with friendly foreign countries and in peacekeeping missions. This move is a clear indication of the Army’s recognition of women’s role in the defense industry and their ability to serve in various capacities. Overall, the Indian Army’s recent move to empower female officers in leadership posts is a significant step towards gender equality and empowerment in the defense sector. It is a testament to the Army’s commitment to providing equal opportunity for female officers and recognizing their valuable contributions to the force.

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20 Things About PARA Commandos You Didn’t Know

The PARA Commandos, also known as the Parachute Regiment, are an elite special forces unit of the Indian Army. Renowned for their bravery, physical prowess, and specialized training, PARA Commandos are often called upon for high-risk operations. In this article, we will delve into 20 lesser-known facts about the PARA Commandos, shedding light on their history, training, and remarkable capabilities. Elite Special Forces: The PARA Commandos are one of India’s most elite special forces units, comparable to the British SAS and the United States Navy SEALs. Rich Heritage: The Parachute Regiment was formed in 1941 during World War II and has a long and distinguished history, with several battle honours to its name. Airborne Assault Experts: The PARA Commandos specialize in airborne assault operations, including parachute jumps from aircraft and helicopter-borne assaults. Selection Process: The selection process to become a PARA Commando is incredibly rigorous, with a high attrition rate. Candidates undergo grueling physical and mental tests to prove their mettle. Combat Divers: PARA Commandos are trained as combat divers, enabling them to operate in various aquatic environments and conduct special underwater missions. Sniper Training: Sniper training is an integral part of the PARA Commandos’ training curriculum. They undergo specialized sniper courses to develop exceptional marksmanship skills. Mountain Warfare Experts: The PARA Commandos are extensively trained in mountain warfare, which equips them to operate in high-altitude terrains, including the challenging Himalayan region. Jungle Warfare Specialists: The dense jungles of India present unique challenges, and the PARA Commandos are trained to navigate through them expertly. They acquire skills in survival, tracking, and guerrilla warfare. Counter-Terrorism Operations: PARA Commandos are frequently deployed in counter-terrorism operations, rescuing hostages, and neutralizing threats in urban environments. Close Quarter Battle (CQB): The PARA Commandos are proficient in CQB, which involves engaging adversaries in confined spaces with precision and speed. Surgical Strikes: The PARA Commandos are adept at carrying out surgical strikes, quick and precise military operations against specific targets, often deep within enemy territory. UN Peacekeeping Missions: PARA Commandos have been part of various United Nations peacekeeping missions, contributing to global peace and stability. Specialized Weapons and Equipment: PARA Commandos have access to a wide range of state-of-the-art weaponry, including assault rifles, sniper rifles, explosives, and cutting-edge communication equipment. High Physical Fitness Standards: PARA Commandos maintain exceptionally high physical fitness standards. Regular physical training and fitness tests ensure they are always at their peak performance. Operational Secrecy: PARA Commandos operate under a veil of secrecy. Their identities and missions are often classified to protect national security. Women in PARA: In recent years, women have been inducted into the PARA Commandos, breaking gender barriers and contributing to the unit’s diverse capabilities. Combat Free Fall: The PARA Commandos are trained in combat free fall techniques, allowing them to perform high-altitude jumps with specialized equipment, such as oxygen masks and navigation aids. Extensive Cross Training: PARA Commandos undergo cross-training with other special forces units, both domestically and internationally, to enhance their skills and exchange knowledge. Multiple Awards and Decorations: The PARA Commandos have received numerous awards for their gallantry and exceptional service, including the prestigious Param Vir Chakra and Ashok Chakra. Sacrifice and Honor: The PARA Commandos epitomize the values of sacrifice, dedication, and honor. They serve as an inspiration to the nation and a symbol of unwavering bravery. Conclusion: The PARA Commandos are an exceptional special forces unit, revered for their unmatched bravery and remarkable skills. Through their rigorous training, versatility in various terrains, and specialization in airborne operations, they have become an integral part of India’s military might. These 20 lesser-known facts provide a glimpse into the incredible world of the PARA Commandos and their vital role in safeguarding national security.

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16 Facts About Gorkha Regiment you should known about it

1. The Gorkha Regiment is one of the most renowned and respected infantry regiments of the Indian Army. It was formed in 1815 and has a glorious history spanning over two centuries. 2. The regiment traces its origins to the Gorkhas, a martial tribe from Nepal known for their fierce loyalty, bravery, and military skills. The Gorkhas have been serving in the Indian Army since the Anglo-Nepalese War in the early 19th century. 3. The Gorkha Regiment has a total of seven battalions, each known for their distinctive traditions and battle honors. These battalions include the 1st, 3rd, 4th, 5th, 8th, 9th, and 11th Gorkha Rifles. 4. Gorkha soldiers are recruited mainly from Nepal and the Indian states of Uttarakhand, Himachal Pradesh, Darjeeling, and Sikkim. They undergo rigorous training to become skilled soldiers capable of operating in varied terrains and challenging conditions. 5. The regiment has participated in numerous military campaigns and wars, both during the British Raj and after India’s independence. They have fought valiantly in major conflicts like World Wars I and II, the Indo-Pakistani wars, and counter-insurgency operations. 6. Gorkha soldiers are known for their distinctive uniform, which includes the traditional khukuri knife carried in a scabbard on their belts. The khukuri is a symbol of their bravery and is deeply ingrained in their culture. 7. The Gorkha Regiment has earned a reputation for its exceptional bravery and outstanding military achievements. Gorkha soldiers have been awarded numerous gallantry awards, including the prestigious Victoria Cross, Param Vir Chakra, and Maha Vir Chakra. 8. Gorkha soldiers are highly skilled in mountain warfare and have a remarkable track record in high-altitude operations. Their expertise in mountain warfare has been instrumental in securing India’s borders in the Himalayan region. 9. The Gorkha Regiment has also contributed significantly to United Nations peacekeeping missions. Gorkha soldiers have served in UN missions around the world, showcasing their professionalism and dedication to global peace and security. 10. The regiment has its own training center called the Gorkha Training Center (GTC) located in Shillong, Meghalaya. The GTC provides specialized training to Gorkha soldiers, focusing on combat skills, physical fitness, and leadership development. 11. Gorkha soldiers are known for their strong sense of camaraderie and loyalty. The regiment emphasizes the values of brotherhood, discipline, and honor, which are instilled in its soldiers from the beginning of their training. 12. The Gorkha Regiment has a rich cultural heritage and celebrates various festivals and traditions. Dashain and Tihar are two prominent festivals celebrated by Gorkha soldiers, highlighting their cultural roots and fostering a sense of unity among the troops. 13. The Gorkha Regiment maintains a close bond with Nepal, and soldiers from Nepal serve alongside their Indian counterparts. This cross-border camaraderie strengthens the ties between the two nations and reflects the historical and cultural affinity shared by both. 14. The Gorkha Regiment has a mascot named “Baba,” a black Himalayan bear. Baba serves as a symbol of strength, courage, and resilience and is an integral part of the regiment’s identity. 15. The Gorkha Regiment has produced several distinguished military leaders who have excelled in their careers and made significant contributions to the Indian Army. Many retired Gorkha officers continue to serve society in various capacities. 16. The Gorkha Regiment continues to play a vital role in India’s defense and security. Its soldiers stand as a testament to the indomitable spirit and valor of the Gorkha warriors, upholding their legacy and making the regiment a source of pride for the nation. These are just a few of the fascinating facts about the Gorkha Regiment, a legendary force that has left an indelible mark in the annals of military history.

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Top 20 Question of English language for CDS Exam

1. Choose the word that is most nearly opposite in meaning to the word “vast”: a) Limited b) Expansive c) Small d) Huge 2. In the sentence, “The teacher praised the student’s commendable effort.” What does “commendable” mean? a) Worthy of praise b) Mediocre c) Unremarkable d) Disappointing 3. Identify the correctly spelled word: a) Accomodation b) Accommodation c) Accomodation d) Acommodation 4. Fill in the blank: “The captain, _______ had a wealth of experience, led the team to victory.” a) who b) whose c) whom d) which 5. Choose the correct form of the verb to complete the sentence: “She _______ her keys on the table.” a) lays b) lain c) laid d) lie 6. Identify the figure of speech used in the sentence: “Her laughter was music to my ears.” a) Simile b) Metaphor c) Personification d) Hyperbole 7. Choose the correct word to complete the idiom: “A piece of _______.” a) pie b) cake c) biscuit d) bread 8. Which sentence is written in the passive voice? a) The cat chased the mouse. b) The mouse was chased by the cat. c) The cat and the mouse were playing together. d) The mouse ran away from the cat. 9. Choose the correct plural form of the word “child”: a) Childs b) Childes c) Children d) Child’s 10. Identify the sentence that contains a dangling modifier: a) Running quickly, the finish line was crossed by the athlete. b) The athlete crossed the finish line quickly. c) The finish line was crossed by the athlete running quickly. d) Quickly running, the athlete crossed the finish line. 11. Choose the word that best completes the analogy: Cat is to meow as dog is to _______. a) Bark b) Purr c) Roar d) Hiss 12. In the sentence, “I am going to the store,” what part of speech is “store”? a) Verb b) Adjective c) Adverb d) Noun 13. Choose the correct preposition to complete the sentence: “He is afraid _______ spiders.” a) of b) from c) by d) with 14. Identify the synonym for the word “deficient”: a) Sufficient b) Adequate c) Lacking d) Abundant 15. Choose the correct form of the verb to complete the sentence: “The students _______ the teacher’s instructions.” a) followed b) follow c) follows d) following 16. Identify the sentence with the correct punctuation: a) She said “I will be there.” b) She said, I will be there. c) She said, “I will be there.” d) She said “I will be there”. 17. Fill in the blank: “The movie was _______ interesting that I watched it twice.” a) so b) such c) very d) too 18. Choose the word that is most nearly similar in meaning to the word “exquisite”: a) Beautiful b) Ugly c) Mediocre d) Ordinary 19. Identify the correct form of the verb to complete the sentence: “She _______ her sister’s hand and smiled.” a) takes b) took c) taking d) take 20. Choose the correct form of the pronoun to complete the sentence: “_______ is the book you borrowed from me.” a) Who b) Whose c) Which d) Whom

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Top Indian Military Quotes Which Every Defense Aspirant Must Know

Certainly! Here are some notable Indian military quotes that every defense aspirant may find inspiring and motivating: 1. “Soldiers win battles; nations win wars.” – Field Marshal Sam Manekshaw 2. “I regret I have but one life to give for my country.” – Major Shaitan Singh (posthumously awarded the Param Vir Chakra) 3. “Either I will come back after hoisting the tricolor, or I will come back wrapped in it, but I will be back for sure.” – Captain Vikram Batra (posthumously awarded the Param Vir Chakra) 4. “No Sir, I will not abandon my tank. My gun is still working and I will get these bastards.” – Lieutenant Arun Khetarpal (posthumously awarded the Param Vir Chakra) 5. “The safety, honour, and welfare of your country come first, always and every time. The honour, welfare, and comfort of the men you command come next. Your own ease, comfort, and safety come last, always and every time.” – Field Marshal Philip Chetwode 6. “Some goals are so worthy, it’s glorious even to fail.” – Wing Commander Abhinandan Varthaman (while in captivity) 7. “A soldier’s thoughts, his feelings, and his duty are all that he is.” – General K. Sundarji 8. “The more you sweat in peace, the less you bleed in war.” – General Norman Schwarzkopf Jr. 9. “There will be no withdrawal without written orders and these orders shall never be issued.” – General A. A. K. Niazi (during the 1971 Indo-Pak War) 10. “The enemy are only 50 yards from us. We are heavily outnumbered. We are under devastating fire. I shall not withdraw an inch, but will fight to our last man and our last round.” – Major Somnath Sharma (posthumously awarded the Param Vir Chakra) Remember, these quotes are meant to inspire and instill a sense of dedication, courage, and patriotism. They reflect the valor and spirit of the Indian military personnel who have dedicated their lives to serving the nation.

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