1
Physics
Light – Reflection and Refraction
Reflection by spherical mirrors, refraction, lens formula, magnification.
Sample Practice Questions
3 questions shown — tap “Show Answer” to check yours.
1
Easy
The image formed by a plane mirror is:
AReal and inverted
BVirtual and erect
CReal and erect
DVirtual and inverted
2
Easy
The focal length of a concave mirror is 10 cm. Its radius of curvature is:
A5 cm
B10 cm
C20 cm
D40 cm
3
Hard
A convex lens of focal length 20 cm forms an image at twice the size of the object. The object distance is:
A10 cm
B15 cm
C30 cm
D40 cm
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