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Railways PYQCBT 1 2016

RRB NTPC · Question 98

Which is the only event to prove that light is a transverse wave? A. Scattering of light B. Interference C. Diffraction D. Polarisation

  1. B

  2. C

  3. D

  4. A

Show answer & explanation

Answer: (C) D

Explanation

Interference and diffraction occur with both longitudinal and transverse waves, but only transverse waves can be polarised. Polarisation therefore proves that light is a transverse wave.