Question

A sound wave travels through a metal rod with wavelength λ and frequency f. Which of the following best describes the wavelength and the frequency when it passes into the surrounding air? Less than λ Equal to f Less than λ Less than Greater than λ Equal to f Greater than λ Less than f

Answer 1

Answer:

greater than lamda and equal to f

Explanation:

as frequency is a property of source and not of medium so it will not change .and lamda is inversely proportional to density of medium so it will increase as density of air is lesser than metal