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JIPMER 2011
Exam
JIPMER
Year
2011
Subject
Physics
Chapter
Ray Optics

JIPMER 2011 · Physics · Ray Optics

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

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∘90^{\circ}
  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, iei e, from medium of higher refractive index to lower refractive index. So, in second (rarer) medium, its velocity increases.
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