Question

A boy 2 km from a train puts his ear on the rails. He finds that the sound of train coming through the tracks is decreasing. He concludes that

• A. The train is moving towards him
• B. The train is moving away from him
• C. the train is stationary
• D. none of the above

Answer 1

The correct option is B

The train is moving away from him

1. Boy finds that the sound of train coming through the tracks is decreasing, which means the separation will increasing
2. It means the train moving away from him.

Hence, option B will be correct.