Q.

What is the phenomenon which established the transverse nature of light?

A. Reflection
B. Interference
C. Diffraction
D. Polarisation
Answer» D. Polarisation
Explanation: The phenomena which proves the transverse nature alight is polarization. Since the intensity of polarized light on passing through a tourmaline crystal changes, with the relative orientation of its crystallo-graphic axes with that of the polarizer, therefore light must consist of transverse waves. Transverse waves are waves that are oscillating perpendicularly to the direction of propagation
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