Question

In a wave motion, y = a sin(kx – wt), y can represent 

(A) Electric field 

(B) Magnetic field 

(C) Displacement 

(D) Pressure

Answer 1

Correct option (A, B)

Explanation:

In case of sound wave, y can represent pressure and displacement, while in case of an electromagnetic wave it represents electric and magnetic fields.

Note: In general, y is general physical quantity which is made to oscillate at one place and these oscillations are propagated to other places also.