JEE Advanced 2020 Full Test 4 Paper 2

A bus B is moving with a velocity vB in the positive X-direction along a road as shown in the figure. A shooter 'S' is at a distance I from the road. He has a detector which can detect signals only of frequency 1500Hz. The bus blows horn of frequency 1000Hz. When the detector detects a signal the shooter immediately shoots towards the road along SC and the bullet hits the bus. Find the velocity of the bullet if velocity of sound in air is v=340m∕s and ‌

vB

v

=‌

2

3√3

.