MHT CET2018PhysicsWaves and Sound
When the source of sound moves towards a stationary observer, the wavelength of sound received by him
Options
- Adecreases while frequency increases.
- Bremains the same whereas frequency increases.
- Cincreases and frequency also increases.
- Ddecreases while frequency remains the same.
Correct answer
A. decreases while frequency increases.
Step-by-step solution
n a = n [ υ ± υ 0 υ ∓ υ s ] . υ 0 = 0 . n a = n [ υ υ − υ s ] So frequency increase, wavelength decreases.