A rectangular acrylic plane mirror is bent in such way that it acts as a concave mirror without changing its length and breadth can we change its focal length? guess and write?
Answers
Answered by
28
ƒσcαℓ ℓεɳɠƭɦ
The distance between the centre of a lens or curved mirror and its focus.
αиѕωєя
No, we cannot change the focal length of a concave mirror, it is oy in the case of convex lens when placed in water.
τнαиκ γου!
Answered by
36
Answer:Yes, by bending the acrylic plane mirror into concave mirror it's focal length changes.
Explanation:Plane mirror reflects light, whereas concave mirror converge light at a point. The distance between that point and pole is known as focal length. Focal length of plane mirror is infinity, when it is bent we can measure it's focal length.
Similar questions