Curiosity

Sound

250+ practice questions available

Sample Practice Questions

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Medium

As temperature increases, the speed of sound in air:

ADecreases

BRemains the same

CIncreases

DFirst increases then decreases

Medium

A person claps near a cliff and hears the echo after 2 s. If the speed of sound is 346 m/s, the distance of the cliff is:

A692 m

B346 m

C173 m

D1384 m

Hard

Ultrasonography is preferred over X-rays for examining a foetus because:

AIt is cheaper

BUltrasound is harmless, unlike X-rays which can damage cells

CIt gives colour images

DIt is faster

Medium

In a flute, the sound is produced by the vibration of:

AThe wooden body

BAir column inside the flute

CThe player's fingers

DThe holes on the flute

Hard

If the cochlea is damaged, a person will:

ANot be able to collect sound

BNot be able to convert vibrations to electrical signals

CHear louder sounds

DHave perfect hearing

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