Reflection of Light(Spherical Mirrors, Morror Formula) NEET Questions

Physics - Optics

Reflection of Light(Spherical Mirrors, Morror Formula) MCQ Questions


1.
What is the focal length of a plane mirror?
A.
Infinite
B.
Zero
C.
Equal to its radius of curvature
D.
Depends on object distance
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ANSWER :
A. Infinite
2.
Which mirror is used in the rearview mirrors of vehicles?
A.
Convex mirror
B.
Concave mirror
C.
Plane mirror
D.
Parabolic mirror
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ANSWER :
A. Convex mirror
3.
What is the nature of the image formed by a convex mirror?
A.
Real and inverted
B.
Virtual and erect
C.
Real and erect
D.
Real and diminished
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ANSWER :
B. Virtual and erect
4.
A concave mirror has a focal length of 20 cm. If an object is placed at 30 cm from the mirror, the image formed will be:

NEET - 2015

A.
Virtual and erect
B.
Real and inverted
C.
At infinity
D.
On the mirror itself
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ANSWER :
B. Real and inverted
5.
The focal length of a concave mirror is:
A.
Positive
B.
Negative
C.
Zero
D.
Depends on object distance
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ANSWER :
B. Negative
6.
For a concave mirror, when the object is placed at infinity, the image is formed at:
A.
At the focus
B.
At infinity
C.
At pole
D.
Between focus and center of curvature
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ANSWER :
B. At infinity