General Knowledge on physics for competitive exam

General Knowledge on physics for competitive exam

General Knowledge on physics for competitive exam: Questions on General Knowledge is common in any competitive examination like Bank PO, SBI, IBPS , RRB, RBI, NABARD, Bank Clerical Exams, SSC CGL, RAS, CDS, UPSC exams, and all state-related examinations. Here you'll get General Knowledge on physics for competitive exam. 

It’s very important for you to stay updated of General Knowledge topics  if you wants to succeed at any of the Government job examinations,

General knowledge in physics

General Knowledge or G.K quiz cover a variety of topics like the Indian Geography , World Geography & History, Everyday Science, Sports, Movies, International Organizations, Awards & Honors, Indian Economy & Politics, The Constitution of India, Current Affairs, etc. In this post we shall discuss about General Knowledge in physics. 

General knowledge about physics 

Here you can find the 25 most common questions 

Q1. The instrument that measures and records the relative humidity of air is

A. Hydrometer

B. Hygrometer

C. Lactometer

D. Barometer

Answer: B

Q2. The shape of our milky way galaxy is

A. circular

B. elliptical

C. spiral

D. None of the above

Answer: C

Q3. The different colours of different stars are due to the variation of

A. temperature

B. pressure

C. density

D. radiation from them

Answer: A

Q4. The fundamental scientific principle in the operation of battery is

A. acid-base interaction

B. dialysis

C. dissociation of electrolytes

D. oxidation-reduction

Answer: C

Q5. Woolen clothes keep the body warm because

A. Wool increases the temperature of the body

B. Wool is a bad conductor

C. Wool absorbs radiant heat from outer objects

D. Wool rejects heat from the outer objects

Answer: B

Q6. While catching a ball, a player pulls down his hands to lower the

A. force

B. moment

C. impulse

D. catching time

Answer: C

Q7. Which combination of colour the most convenient during day and night time ?

A. Organe and blue

B. White and black

C. Yellow and blue

D. Red and green

Answer: D

Q8. When a barometer reading suddenly recedes, it indicates that climate

A. will be very warm

B. will be extremely stormy

C. will remain cold

D. incessant rain for at least 48 hours

Answer: B

Q9. If the length of a simple pendulum is halved then its period of oscillation is

A. doubled

B. halved

C. increased by a factor

D. decreased by a factor

Answer: D

Q10. Equilibrium is a condition that can

A. never change

B. change only if some outside factor changes

C. change only if some internal factor changes

D. change only if government policies change

Answer: A

Q11. Instrument used to measure the force and velocity of the wind is

A. Ammeter

B. Anemometer

C. Altimeter

D. Audiometer

Answer: B

Q12. Smog is a general pollutant where

A. Temperature is high

B. Temperature is low

C. Air contains excess ammonia

D. Air contains excess SO₂

Answer: D

Q13. Geostationary satellite revolves at

A. Any height

B. Fixed height

C. Height which depends upon its mass

D. Height above pole

Answer: B

Q14. The speed of light’ with the rise in the temperature of the medium 

A. Increases

B. Decreases

C. Remains unaltered

D. Drops suddenly

Answer: C

Q15. Asteroids revolve round the Sun between which of the following two planets ?

A. Earth and Mars

B. Mars and Jupiter

C. Jupiter and Saturn

D. Saturn and Uranus

Answer: B

Q16. Electron microscope was invented by

A. Knoll and Ruska

B. Robert Koch

C. Leeuwen hock

D. CP. Swan son

Answer: A

Q17. In a refrigerator what produces the cooling ?

A. The ice which deposits on the freezer

B. The sudden expansion of a compressed gas

C. The evaporation of a volatile liquid

D. None of these

Answer: C

Q18. Longitudinal waves cannot travel through

A. Vacuum

B. Solid

C. Liquid

D. Gas

Answer: A

Q19. When pressure is increased the melting point of ice

A. Increases

B. Does not change

C. Decreases

D. Depends on the impurities in the ice

Answer: C

Q20. Electrostatic precipitator is used to control the pollution of

A. Air

B. Water

C. Noise

D. Thermal

Answer: A

Q21. The animal which uses sounds as its ‘eyes’ is

A. Dog

B. Cat

C. Snake

D. Bat

Answer: D

Q22. Which of the following parts of the sunlight makes the solar cooker hot ?

A. Ultraviolet

B. Red light

C. Infrared

D. Cosmic rays

Answer: C

Q23. The sky appears blue because of

A. Atmospheric water vapour

B. Scattering of light

C. Reflection on sea water

D. Emission of blue wavelength by the sun

Answer: B

Q24. The working of the quartz crystal in the watch is based on

A. Johnson effect

B. Photoelectric effect

C. Edison effect

D. Piezo electric effect

Answer: D

Q25. In the atmosphere ultraviolet rays are absorbed by

A. Oxygen

B. Nitrogen

C. Ozone

D. Helium

Answer: C

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