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प्रश्न
Can sound travel through (a) iron, and (b) water?
उत्तर
Yes, sound can travel through iron as well as water.
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संबंधित प्रश्न
Fill in the blank.
Sound is produced when a body ______.
Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?
Name the physical qantity whose SI unit is 'hertz'.
Which object is vibrating when the following sounds are produced?
(i) The sound of a sitar
(ii) The sound of a tabla
(iii) The sound of a tuning fork
(iv) The buzzing of a bee or mosquito
(v) The sound of a flute
Draw the sketches of two waves A and B such that wave A has twice the wavelength and half the amplitude of wave B.
A device called oscillator is used to send waves along a stretched string. The string is 20 cm long, and four complete waves fit along its length when the oscillator vibrates 30 times per second. For the waves on the strings.
(a) what is their wavelength?
(b) what is their frequency
(c) what is their speed?
A musical instrument is producing a continuous note. This note cannot be heard by a person having a normal hearing rang. This note must then be passing through.
How is sound produced in a human larynx and a loudspeaker?
What is vibration?
Suppose a stick is struck against a frying pan in vacuum. Will the frying pan vibrate? Will we be able to hear the sound? Explain.
