When electromagnetic waves are reflected at an angle from a wall, their wavelength along the wall is

The same as the wavelength perpendicular to the wall

Shortened because of the Doppler effect

Greater than in the actual direction of propagation

When electromagnetic waves are reflected at an angle from a wall, thei

1.	When electromagnetic waves are reflected at an angle from a wall, their wavelength along the wall is
A.	The same as in free space
B.	The same as the wavelength perpendicular to the wall
C.	Shortened because of the Doppler effect
D.	Greater than in the actual direction of propagation
Answer» E.

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When electromagnetic waves are reflected at an angle from a wall, their wavelength along the wall is

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