Magnification, Power of a Lens, Combination of thin lenses in contact. Refraction of light... NEET Questions

Physics - Optics

Magnification, Power of a Lens, Combination of thin lenses in contact. Refraction of light... MCQ Questions


13.
Which component of a refracting telescope is responsible for magnification?
A.
Objective lens
B.
Eyepiece lens
C.
Convex mirror
D.
Plane mirror
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ANSWER :
B. Eyepiece lens
14.
The condition for minimum deviation in a prism is:

NEET - 2018

A.
Angle of incidence = Angle of refraction
B.
Angle of incidence = Angle of emergence
C.
Angle of refraction = 90°
D.
Prism angle = 90°
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ANSWER :
B. Angle of incidence = Angle of emergence
15.
What type of image is formed by a simple microscope?
A.
Virtual, Erect
B.
Real, Inverted
C.
Erect, Magnified
D.
Diminished, Real
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ANSWER :
A. Virtual, Erect
16.
Which of the following affects the resolving power of a telescope?
A.
Aperture of objective lens
B.
Lens diameter
C.
Focal length of the eyepiece
D.
Refractive index of air
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ANSWER :
B. Lens diameter
17.
A convex lens forms a real image of magnification 2. The object distance is:

NEET - 2019

A.
F
B.
2F
C.
3F
D.
Between F and 2F
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ANSWER :
D. Between F and 2F
18.
The power of a convex lens is measured in:
A.
Degrees
B.
Meters
C.
Centimeters
D.
Diopters
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ANSWER :
D. Diopters