The Plot of the Angle of Deviation Vs Angle of Incidence for a Triangular Prism NEET Questions

Physics - Experimental Skills

The Plot of the Angle of Deviation Vs Angle of Incidence for a Triangular Prism MCQ Questions


13.
The curve of deviation vs incidence angle is:
A.
A straight line
B.
A U-shaped curve
C.
A hyperbola
D.
A sinusoidal curve
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ANSWER :
B. A U-shaped curve
14.
If the angle of incidence is equal to the critical angle, the deviation:
A.
Is maximum
B.
Is minimum
C.
Is zero
D.
Becomes infinite
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ANSWER :
D. Becomes infinite
15.
The deviation angle for red light is:
A.
Greater than that for violet light
B.
Less than that for violet light
C.
Same as that for violet light
D.
Independent of wavelength
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ANSWER :
B. Less than that for violet light
16.
The plot of angle of deviation vs angle of incidence is symmetric about:
A.
The minimum deviation point
B.
The maximum deviation point
C.
The midpoint of the prism
D.
The normal to the prism
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ANSWER :
A. The minimum deviation point
17.
A larger refractive index of the prism leads to:
A.
A smaller deviation
B.
A larger deviation
C.
No effect on deviation
D.
Deviation remains constant
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ANSWER :
B. A larger deviation
18.
At minimum deviation, the light ray inside the prism:
A.
Is perpendicular to the base
B.
Is parallel to the base
C.
Is perpendicular to the prism face
D.
Exits at the same angle as it entered
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ANSWER :
B. Is parallel to the base