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Light Reflection and Refraction

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Question
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1
363
Name the physical quantity whose unit is dioptre.
By Shivani siva, 4 years ago
replies 1
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298
Which causes more bending (or more refraction) of light rays passing through it: a convex ...
By Shivani siva, 4 years ago
replies 1
0
1
237
The lens A has a focal length of 25 cm whereas lens B has a focal length of 60 cm. Giving ...
By Shivani siva, 4 years ago
replies 1
0
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417
An image formed on a screen is three times the size of the object. The object and screen a...
By Shivani siva, 4 years ago
replies 1
0
1
505
An object is 2 m from a lens which forms an erect image one-fourth (exactly) the size of t...
By Shivani siva, 4 years ago
replies 1
0
1
312
A camera fitted with a lens of focal length 50 mm is being used to photograph a flower tha...
By Deepak Rock, 4 years ago
replies 1
0
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272
Find the position and size of the virtual image formed when an object 2 cm tall is placed ...
By Deepak Rock, 4 years ago
replies 1
1
1
493
A 2.0 cm tall object is placed 40 cm from a diverging lens of focal length 15 cm. Find the...
By Deepak Rock, 4 years ago
replies 1
0
1
394
An object is placed 20 cm from (a) a converging lens, and (b) a diverging lens, of focal l...
By Deepak Rock, 4 years ago
replies 1
0
1
489
A concave lens has a focal length of 20 cm. At what distance from the lens a 5 cm tall obj...
By Deepak Rock, 4 years ago
replies 1
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