Question

The given figure shows two men M and N, facing two flat and hard walls, wall 1 and wall 2.
If N fires a gun, man M hears two echoes, one from wall 1 and second from wall 2. The speed of sound in air is given to be 325 m/s.
1) After firing of a gun by the man N, the man M will hear the first echo in ? seconds.
2) If the time difference between the two echoes as heard by man M is 1.23 seconds, then the distance between the walls, y is ? metre.​

Answer 1

answer is 0346 and 5752 is answer

Explanation:

if rifle is shot during arms 0346 and 5752

Answer 2

Answer:

• The answer is - 0346 and 5752.

Explanation:

if rifle is shoot during arms then - 0346 and 5752