Question

Gita along her father was waiting for trainata platfform . soon she saw the train coming towards the platform .She noticed that as the train was approching her, the pitch of its wistle appeared to raise and it suddenly appeared to drop as the engine moved away from her. Explain the reason for the changing in pitch of the whistle. (1) What are the values being displayed by Gita ? (2) Name the effect involved in the above observation

Answer 1

1. Rita concentrate on anything around her.

2.the frequency was different