Question

A source of sound produces waves of wavelength 60 cm when it is stationary. If the speed of sound in air is 320 m s⁻¹ and source moves with speed 20 m s⁻¹, the wavelength of sound in the forward direction will be nearest to(a) 56 cm(b) 60 cm(c) 64 cm(d) 68 cm

Answer 1

hey mate I think correct answer is part (b)

hope it helps

Answer 2

Heya mate....

here is your answer

Option B

Hope It Helps You ‍❤️‍‍