The speed of sound in air at a given temperature is 350 m/s. An engine blows whistle at a frequency of 1200 cps. It is approaching the observer with velocity 50 m/s. The apparent frequency in cps heard by the observer will be 

(1) 600

(2) 1050

(3) 1400

(4) 2400

Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level: