A) Water wave and sound wave
B) Sound wave and radio wave
C) X-rays and water wave
D) Light wave and X-ray
Correct Answer: D
Solution :
Key Idea: Only transverse waves can be polarised. Light waves and X-rays are transverse, hence the vibrations of the electric vector must occur in a plane perpendicular to the direction of propagation of light and hence, give rise to polarised light. Note: Longitudinal waves cannot be polarised.
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