1. Tardigrade
  2. Question
  3. Physics
  4. An air bubble in a glass slab (R.I. = 1.5) . appears to be at 0.06 m and 0.04 m when viewed normally from the two opposite sides. The thickness, in m, of the slab is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. An air bubble in a glass slab (R.I. = 1.5) . appears to be at 0.06 m and 0.04 m when viewed normally from the two opposite sides. The thickness, in m, of the slab is

COMEDKCOMEDK 2011Ray Optics and Optical Instruments

Solution:

Refractive index of slab, $\mu = 1.5$
Total apparent length in the glass
$= 0.06 + 0.04 = 0.10 \: m$.
Thickness of the slab,
$t = \mu \times $ Apparent length in the glass
$= 1 .5 \times 0.10 = 0.15 \: m$.