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  9. Q415

RRB Junior Engineer / DMS / CMA 2015 · Question 415 of 480

A light ray from air enters and passes through a glass slab. Which of the following statement is true about its speed after it emerges from the block?

  1. ASpeed of same as hat before it entered glass slabCorrect
  2. BSpeed is same as that in glass slab
  3. CSpeed is less than when in glass slab
  4. DSpeed is less than before it entered glass slab

Answer: A. Speed of same as hat before it entered glass slab

Official answer key verified. Detailed explanation coming soon.

Source: RRB JE 28-August Shift question paper with solutions — splessons.com · reliable-secondary

← Q414View full paper (480 questions)Q416 →

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