Question

A man sitting on a swing which is moving to an angle of 60° from the vertical is blowing a whistle which has a frequency of 2.0 k Hz. The whistle is 2.0 m from the fixed support point of the swing. A sound detector which detects the whistle sound is kept in front of the swing. The maximum frequency the sound detector detected is

Options

• 2.027 kHz

• 1.914 kHz

• 9.14 kHz

• 1.011 kHz

Answer 1

2.027 kHz