List of top Physics Questions on Electromagnetic waves asked in JEE Main

Select the correct statement from the following

A wave in a string has amplitude of 2 cm. The wave travels in the +ve direction of x axis with a speed of $128{ms}^{-1}$ and it is noted that 5 complete waves fit in 4 m length of the string. The equation describing the wave is:

In an electromagnetic wave, the magnitude of electric and magnetic fields are 100 V/m and 0.265 A/m. The maximum energy flow is