Refractive Index of a Glass Slab using a Travelling Microscope NEET Questions

Physics - Experimental Skills

Refractive Index of a Glass Slab using a Travelling Microscope MCQ Questions


13.
To determine the refractive index of a glass slab using a traveling microscope, the glass slab is placed on a:

NEET - 2017

A.
Flat surface
B.
Concave surface
C.
Convex surface
D.
Cylindrical surface
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ANSWER :
A. Flat surface
14.
When a light ray passes through a parallel-sided glass slab, the emergent ray is:
A.
Parallel to the incident ray
B.
Perpendicular to the incident ray
C.
In the same direction as the refracted ray
D.
Totally internally reflected
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ANSWER :
A. Parallel to the incident ray
15.
The shift in the apparent position of the bottom surface of the glass slab is called:
A.
Lateral displacement
B.
Optical shift
C.
Apparent depth
D.
Diffraction
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ANSWER :
C. Apparent depth
16.
The refractive index of the glass slab is determined by measuring the:

NEET - 2018

A.
Angle of incidence and the angle of refraction
B.
Angle of deviation and the thickness of the glass slab
C.
Change in position of the image
D.
The radius of curvature of the lens
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ANSWER :
B. Angle of deviation and the thickness of the glass slab
17.
The refractive index of glass is always measured with respect to:
A.
Air
B.
Vacuum
C.
Water
D.
Any of the above
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ANSWER :
D. Any of the above
18.
What is the function of the traveling microscope in the experiment to determine the refractive index of the glass slab?

NEET - 2019

A.
To measure the thickness of the slab
B.
To measure the angle of incidence
C.
To measure the angle of deviation
D.
To measure the displacement of the image
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ANSWER :
A. To measure the thickness of the slab