Published by:
CGP EDU Academic Team
Published on: September 12, 2026
In finding out refractive index of glass slab the following observations were made through travelling microscope 50 vernier scale division 
divisions on main scale in each cm
For mark on paper
For mark on paper seen through slab
For powder particle on the top surface of the glass slab
(MSR 
Main Scale Reading, 
Vernier Coincidence)
Refractive index of the glass slab is:
Text Solution
Verified by ExpertsThe correct answer is:
C
For mark on paper, 
For mark on paper through slab, 
For powder particle on top surface, 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The difference of speed of light in the two media A and B (v A – v B ) is 2.6 x 10 7 m/s. If the re…
A light whose electric field vectors arc completely removed by using a good Polaroid, allowed to in…
Consider a light ray travelling in air is incident into a medium of refractive index . The inciden…
A ray of ligh is incident at an angle of incidence 60° on the glass slab of refractive index . Aft…
A light ray is incident, at an incident angle , on the system of two plane mirrors M 1 and M 2 hav…
A parallel beam of light is allowed to fall on a transparent spherical globe of diameter 30 cm and …