Questions
A point object is placed at a distance of 30 cm from a convex mirror of focal length 30 cm. The image will form at
a
Infinity
b
Focus
c
Pole
d
15 cm behind the mirror
detailed solution
Correct option is D
u = - 30 cm, f = + 30 cm, by using mirror formula1f=1v+1u⇒1+30=1v+1-30v = 15 cm, (Behind the mirror)Talk to our academic expert!
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The distance of a real object from the focus of a convex mirror of radius of curvature ‘a’ is ‘b’. Then the distance of the image from the focus is
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