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Light Reflection and Refraction

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Jaiyush19
The radius of curvature of a spherical mirror is 20 cm. What is its focal length?
By Jaiyush19, 4 years ago
replies 1
0
1
413
Jaiyush19
Define principal focus of a concave mirror.
By Jaiyush19, 4 years ago
replies 1
0
1
281
A person got his eyes tested by an optician. The prescription for the spectacle lenses to ...
By Deepak Rock, 4 years ago
replies 1
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1
376
The optical prescription for a pair of spectacles is: Right eye: –3.50 D Left eye : –4.00 ...
By Deepak Rock, 4 years ago
replies 1
0
1
284
Two lenses A and B have power of (i) +2 D and (ii) –4 D respectively. What is the nature a...
By Deepak Rock, 4 years ago
replies 1
0
1
351
What do you understand by the power of a lens? Name one factor on which the power of a len...
By Deepak Rock, 4 years ago
replies 1
0
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436
Two lenses A and B have focal lengths of +20 cm and, -10 cm, respectively. (a) What is the...
By Deepak Rock, 4 years ago
replies 1
0
1
379
The power of a combination of two lenses X and Y is 5 D. If the focal length of lens X be ...
By Deepak Rock, 4 years ago
replies 1
0
1
511
A convex lens of focal length 25 cm and a concave lens of focal length 10 cm are placed in...
By Deepak Rock, 4 years ago
replies 1
0
1
408
A convex lens of power 5 D and a concave lens of power 7.5 D are placed in contact with ea...
By Deepak Rock, 4 years ago
replies 1
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