Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Section- A
A light wave is propagating with plane wave fronts of the type 
constant. The angle made by the direction of wave propagation with the x -axis is :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
The direction of propagation of light is perpendicular to the wave front and is symmetric about 
and z axis.
Angle made by the light with 
axis is same.
are angle made by light with 
axis respectively)
Also 
[Sum of direction cosines]
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