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


7.
What is the principle used in determining the refractive index of a glass slab using a traveling microscope?

NEET - 2015

A.
Refraction at the curved surface
B.
Refraction at the flat surface
C.
Reflection at the flat surface
D.
Dispersion at the curved surface
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ANSWER :
B. Refraction at the flat surface
8.
The refractive index of glass with respect to air is generally:
A.
Less than 1
B.
Equal to 1
C.
Greater than 1
D.
Always 0
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ANSWER :
C. Greater than 1
9.
The refractive index of glass depends on:
A.
The material of glass
B.
The color of light used
C.
The angle of incidence
D.
All of the above
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ANSWER :
D. All of the above
10.
In the experiment to determine the refractive index of a glass slab using a traveling microscope, what is measured?

NEET - 2016

A.
The angle of incidence and refraction
B.
The angle of deviation and the thickness of the slab
C.
The thickness of the slab and the refractive index
D.
The angle of refraction only
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ANSWER :
B. The angle of deviation and the thickness of the slab
11.
If the refractive index of a medium is higher, the speed of light in that medium will be:
A.
Higher
B.
Lower
C.
Same as in air
D.
Infinite
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ANSWER :
B. Lower
12.
The travelling microscope is used in the experiment to measure:
A.
The thickness of the glass slab
B.
The focal length of a lens
C.
The density of the glass slab
D.
The weight of the glass slab
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ANSWER :
A. The thickness of the glass slab