Question:
A concave lens and a convex lens have same focal length of $20$ cm and both put in contact with combination is used to view an object $5$ cm long kept at $20$ cm from the lens combination. As compared to object the image will be.
A concave lens and a convex lens have same focal length of $20$ cm and both put in contact with combination is used to view an object $5$ cm long kept at $20$ cm from the lens combination. As compared to object the image will be.
Updated On: Jul 5, 2022
- magnified and inverted
- reduced and erect
- of the same size and erect
- of the same size and inverted.
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The Correct Option is C
Solution and Explanation
Answer (c) of the same size and erect
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Concepts Used:
Spherical Mirrors
A spherical mirror is a mirror which has been cut out of a spherical surface.
There are two kinds of spherical mirrors:
- Convex Mirror
- Concave Mirror
Concave Mirror
Concave mirrors are also called converging mirrors, because in these types of mirrors, light rays converge at a point after impact and reflect back from the reflective surface of the mirror.
Convex Mirror
The convex mirror has a reflective surface that is curved outward. Regardless of the distance between the subject and the mirrors, these mirrors are "always" virtual, upright and reduced.