A train approaches a stationary observer, the velocity of train being 1/20 of the velocity of sound.A sharp blast is blown with the whistle of the engine at equal intervals of a second.Find the interval between the successive blasts as heard by the observer.

A train approaches a stationary observer, the velocity of train being

1.	A train approaches a stationary observer, the velocity of train being 1/20 of the velocity of sound.A sharp blast is blown with the whistle of the engine at equal intervals of a second.Find the interval between the successive blasts as heard by the observer.
Answer» ANSWER :19/20 s