Advertisements
Advertisements
प्रश्न
A person is standing at the seashore. An observer on the ship which is anchored in between a vertical cliff and the person on the shore fires a gun. The person on the shore hears two sounds, 2 seconds and 3 seconds after seeing the smoke of the fired gun. If the speed of sound in the air is 320 ms-1 then calculate:
1) the distance between the observer on the ship and the person on the shore.
2) the distance between the cliff and the observer on the ship.
Advertisements
उत्तर
1) `d_1 = 320 xx 1.5 = 320 xx 1.5 = 640 m`
2) `d_2 = 320/2 = 160 m`
APPEARS IN
संबंधित प्रश्न
The pitch of a stringed instrument is increased by .................. tension in string.
Explain the mechanism of the formation of a longitudinal wave when the source vibrates in the air.
State three factors on which loudness of sound heard by a listener depends.
Two musical notes of the same pitch and same loudness are played on two different instruments. Their wave patterns are as shown in figure.
How do they differ in
(a) loudness,
(b) pitch and
(c) quality
Two waves of the same pitch have amplitudes in the ratio 1 : 3 What will be the ratio of their
- loudness,
- pitch?
Draw a diagram to show the wave pattern of high pitch note and a low pitch note, but of the same loudness.
It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums.
(i) Name the characteristics of sound associated with the above obervation.
(ii) Give a reason for the above observation.
Name one main factor on which each character such as intensity, pitch, and quality of musical sound depends.
How is it possible to detect the filling of a pitcher under a tap by hearing its sound at a distance?
What is meant by the ‘pitch’ of a note? Does it depend on the loudness or ‘quality’ of the ‘note’? How is pitch ‘related’ with frequency?
