Fill in the blanks.

(a) A flautist can place fingers on the proper holes and produce vibrations of ………… .

(b) Sound is heard more clearly ………… as compared to air.

(c) In drums, ………… vibrates to produce sound.

(d) The speed of light is ………… times that of sound.

(e) When temperature increases the speed of sound ………… .

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Solution

(a) A flautist can place fingers on the proper holes and produce vibrations of air column.

(b) Sound is heard more clearly in solid as compared to air.

(c) In drums, membrane vibrates to produce sound.

(d) The speed of light is 10⁶times that of sound.

(e) When temperature increases the speed of sound increase.

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