Reflection — Set 3
Physics · परावर्तन · Questions 21–30 of 70
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1
In reflection, the angles are measured with respect to the?
2
A concave mirror has focal length 12 cm and an object is placed 24 cm in front of it. The image distance from the mirror is?
3
The magnification produced by a plane mirror is?
4
For a concave mirror, when the object is at the center of curvature, the image forms?
5
The device that produces colorful patterns using repeated reflections is a?
6
A dentist uses a concave mirror mainly because it can produce a?
7
A plane mirror is rotated by 10°. The reflected ray rotates by?
8
In a convex mirror, the principal focus is?
9
Reverberation is the?
10
Soundboards and curved reflectors in auditoriums are used mainly to?