Q167 / 180 · COMEDK 2012 · Physics

A monochromatic ray of light enters into a glass $\operatorname{slab}(n=1.5)$ along the normal to the surface. The angle of deviation of the refracted ray is

  • A
    $90^{\circ}$
  • B
    $45^{\circ}$
  • C
    $30^{\circ}$
  • Correct answer
    D
    $0^{\circ}$

Solution

When a ray of light enters a glass slab along the normal to the surface, it passes straight without deviation. So, angle of deviation is zero $\left(0^{\circ}\right)$.

Hence, the correct answer is option: 'D'.

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