Top 1000+ Solved Physics MCQ Questions Answer

From 346 to 360 of 1211

Q. Full form of CFL used in place of electric bulbs is –

a. compact fluorescent lamp

b. constantan filament lamp

c. closed filament lamp

d. closed fluorescent lamp

  • a. compact fluorescent lamp

Q. A light year is a unit of –

a. time

b. distance

c. speed of light

d. intensity of light

  • b. distance

Q. An instrument that records earth- quakes is –

a. Ergograph

b. Ediograph

c. Thermograph

d. Seismograph

  • d. Seismograph

Q. An object is in static equilibrium when it is               .

a. at rest

b. moving in a circular path

c. moving with uniform velocity

d. accelerating at high speed

  • a. at rest

Q. The study of phenomena at very low temperatures is called -

a. heat transfer

b. morphology

c. crystallography

d. cryogenics

  • d. cryogenics

Q. Steel is more elastic than rubber because it –

a. requires larger deforming force

b. Is never deformed

c. is deformed very easily

d. is harder than rubber

  • c. is deformed very easily

Q. Which phenomena shows the particle nature of light?

a. Diffraction

b. Interference

c. Photoelectric effect

d. Polarisation

  • c. Photoelectric effect

Q. Sound waves in air are             .

a. transverse

b. longitudinal

c. electromagnetic

d. polarised

  • b. longitudinal

Q. The motion of a body that repeats itself after a regular interval of time is –

a. a periodic motion

b. a simple harmonic motion

c. an aperiodic motion

d. an oscillatory motion

  • a. a periodic motion

Q. When a strong beam of light is passed through a colloidal solution, the light will –

a. be scattered

b. pass unchanged

c. be absorbed

d. be reflected

  • a. be scattered

Q. Which one of the following is not allied to Geophysical Sciences?

a. Hydrology

b. Meteorology

c. Palaeontology

d. Seismology

  • c. Palaeontology

Q. The pitch of sound depends on its –

a. Frequency

b. Intensity

c. Velocity

d. Amplitude

  • a. Frequency

Q. The ozone layer protects us from -

a. Ultra violet rays

b. Radio waves

c. Visual radiation

d. Infrared radiation

  • a. Ultra violet rays

Q. Entropy of the universe is -

a. continuously increasing

b. continuously decreasing

c. zero

d. constant

  • a. continuously increasing
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