Physics Circle home Student Login

Home›Chapters›Ray Optics PYQs›Refraction, Glass Slab & Apparent Depth›Question 84

NEET 1993 (AIPMT) · Refraction, Glass Slab & Apparent Depth

Refraction, Glass Slab & Apparent Depth question from NEET 1993 (AIPMT)

Q84NEET 1993 · AIPMTEasy

Refraction, Glass Slab & Apparent Depth

Time taken by sunlight to pass through a window of thickness 4 mm whose refractive index is 32\frac{3}{2} is

Show answer and solution

Answer: (c)

  1. Time =μtc= \frac{\mu t}{c}
  2. =1.5×4×10−33×108=2×10−11 s= \frac{1.5 \times 4 \times 10^{-3}}{3 \times 10^8} = 2 \times 10^{-11}\text{ s}
  3. So the answer is (c).
Report a mistake

More questions on Refraction, Glass Slab & Apparent Depth