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JIPMER2011PhysicsRay Optics

A light movs from denser to rarer medium, which of the following is correct?

Options

  1. AEnergy increases
  2. BFrequency increases
  3. CPhase changes by 90^
  4. DVelocity increases

Correct answer

D. Velocity increases

Step-by-step solution

When a ray of light moves from one medium to other, its velocity changes. This change depends on refractive index of the medium. Light travels from denser to rarer medium, i e , from medium of higher refractive index to lower refractive index. So, in second (rarer) medium, its velocity increases.

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