Sounds waves and Motion MCQ question and answer with solution | Physics Gk MCQs

A. Both assertion and reason are true and reason is the correct explanation of assertion

B. Both assertion & reason are true but reason is not the correct explanation of assertion

C. Both assertion and reason are false

D. Assertion is true but the reason is false

A. Wavelength

B. Amplitude

C. Half of the wavelength

D. Twice of wavelength

A. Sound waves can travel through water

B. Sound waves can travel throught air

C. Sound waves can travel through steel

D. Sound waves can travel through vacuum

A. The velocity of sound in air is independent of pressure

B. The velocity of sound in air increases with increase of temperature

C. The velocity of sound in air decreases as the humidity increases

D. The velocity of sound in air is not affected by the change in amplitude and frequency

A. 0.20 Hz

B. 625 hertz

C. 100 Hz

D. 250 Hz

A. Solids

B. Liquids

C. Gases

D. Vacuum

A. displacement is maximum

B. is half way between the mean and extreme position

C. crosses mean position

D. is at rest

A. X-rays

B. Microwaves

C. Radiowaves

D. Sound waves

A. Gamma rays

B. UV radiation

C. Infrared radiation

D. Alpha ray

A. Greater than 20,000 Hz

B. Less than 10,000 Hz

C. Equal to 1000 Hz

D. None of the above