Advertisements
Advertisements
प्रश्न
Consider the statement given below and choose the correct option.
Assertion: When lightning strikes, the sound is heard a little after the flash is seen.
Reason: The velocity of light is greater than that of the sound.
विकल्प
Both assertion and reason are true and the reason is the correct explanation of assertion.
Both assertion and reason are true but reason is not the correct explanation of assertion.
Assertion is true but reason is false.
Assertion is false but reason is true.
Both Assertion and reason are false.
Advertisements
उत्तर
Both assertion and reason are true and the reason is the correct explanation of assertion.
APPEARS IN
संबंधित प्रश्न
Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?
How can the pitch of sound produced in a piano be changed ?
State the speed of (i) light and (ii) sound in air?
What do you mean by the audible range of frequency?
Select the correct option:
Which of the following is an elastic wave?
The distance between one crest and one trough of a sea wave is 4.5 m. If the waves are produced at the rate of 240/min, calculate the wave velocity.
The diagram given below shows a displacement distance graph of a wave. If the velocity of wave is 160 ms-1, calculate:
- wavelength
- frequency
- amplitude.

How does the speed of sound depend on (i) Amplitude, and (ii) Wavelength?
