If wave exceeds the MUF then it is not reflected back.

If wave exceeds the MUF then it is not reflected back. Correct Answer True

Maximum usable frequency (MUF) is defined as the maximum possible frequency for which the wave is reflected back for a given distance of propagation in the ionosphere layer. If the wave exceeds MUF then it’s not reflected back and is transmitted to other upper layers and signal is lost.

Related Questions

If the incident wave and the reflected wave are completely out of phase, then the reflected surface is:
Assertion (A): Small glass beads fixed on traffic signals glow brightly when light falls upon them.
Reason (R): Light is totally reflected when the angle of incidence exceeds a certain critical value and light travelling in a denser medium is reflected from a rarer medium.