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प्रश्न
Numerical problem.
A concave mirror produces three times magnified real image of an object placed at 7 cm in front of it. Where is the image located? (Ans: 21 cm in front of the mirror)
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उत्तर
Given: hi = 3ho
u = 7 cm
Solution:
- m = `"h"_"i"/"h"_"O"⇒(3"h"_"o")/("h"_"O")` ∴ m = 3.
m = ` – v/u`
v = – m × u
= – 3 × 7 cm = – 21 cm.
Hence, Real, inverted and magnified image will be formed at 21 cm in front of the mirror.
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संबंधित प्रश्न
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a concave mirror?
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Fill in the following blank with a suitable word:
A ray of light which is parallel to the principal axis of a convex mirror, appears to be coming from ............ after reflection from the mirror.
Light travels in the same straight line path while passing through different media.
The angle formed between the normal and the refracted ray is known as the angle of incidence.
Write true or false
At the point of incidence, a line drawn at right angles to the surface, separating the two media, is called the normal.
A convex mirror is used
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