Suppose a person whistles standing on the moon. Will the person standing nearby hear the sound? Explain giving reasons.

Monjur Alahi

(a) Suppose a person whistles standing on the moon. Will the person standing nearby hear the sound? Explain giving reasons. 

(b) What kind of wave needs a material medium to propagate?


0 like 0 dislike
2 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

(a) No, the person standing nearby would not be able to hear the whistle as there is no atmosphere on the moon. Sound waves needs medium for travelling, but the moon has no medium for the propagation of sound. Therefore, no sound could be heard. 

(b) Mechanical waves need material medium to propagate. For example: sound waves.

0 like 0 dislike
2 views
Talk Doctor Online in Bissoy App
If the moon attracts the earth, why does the earth not move towards the moon?

The Earth and the moon experience equal gravitational forces from each other. However, the mass of the Earth is much larger than the mass of the moon. Hence, it accelerates...

1 Answers 1 views
Suppose gravity of earth suddenly becomes zero, then in which direction will the moon begin to move if no other celestial body affects it?

The moon will begin to move in a straight line in the direction in which it was moving at that instant because the circular motion of moon is due to...

1 Answers 1 views
Suppose you and your friend are on the moon. Will you be able to hear any sound produced by your friend?

On the moon, sound cannot travel as there is no atmosphere. Sound cannot travel in vacuum so we will not be able to hear any sound.

1 Answers 1 views
Suppose you and your friend are on the moon. Will you be able to hear any sound produced by your friend? 1 Answers 1 views
Why do we hear the sound produced by the humming bees while the sound of vibrations of pendulum is not heard?

Humming bees produce sound by vibrating their wings which is in the audible range. In case of pendulum the frequency is below 20 Hz which does not come in the...

1 Answers 1 views
Why do we hear sound of an approaching car before the car reaches us?

This is because velocity of sound is much greater than the velocity of car.

1 Answers 1 views
Define the term ‘tone’. A person is listening to a sound of 500 Hz sitting at a distance of 450 m from the source of the sound.

Tone is the sound of single frequency.  Given,  Frequency, f = 500 Hz;  Distance, s = 450 m  Time period, T=?  T = 1/ f = 1 /500 = 0.002s  Therefore, the time interval will be 0.002...

1 Answers 1 views
Phases of the moon occur because a. we can see only that part of the moon which reflects light towards us.

Yes, you wrote right.

1 Answers 1 views
The force exerted by the floor of an elevator on the foot of a person standing there is more than the weight of the person if the elevator is

(b) going up and speeding up (c) going down and slowing down Explanation: If we are going to use Newton's laws of motion in a non-inertial frame like accelerating elevator, we have to...

1 Answers 1 views
There are 6 tasks and 6 persons. Task 1 cannot be assigned either to person 1 or to person 2; task 2 must be assigned to either person 3 or person 4

(a) Task 1 can not be assigned to either person 1 or 2 i.e. there are 4 options. Task 2 can be assigned to 3 or 4 So, there are only 2 options...

1 Answers 1 views
X