Light - Study Mode
[#41] Which of the following does not contribute to the sparking of diamonds?
Correct Answer
(D) Low refractive index of diamond
[#42] If the focal length of a convex lens is 50 cm, then which one of the following is its power?
Correct Answer
(A) +2 D
[#43] Which of these travels in glass with minimum velocity?
Correct Answer
(B) violet light
[#44] . . . . . . . . is not an example of refraction of light.
Correct Answer
(C) Lateral inversion
[#45] Which one of the following is used for sunglasses?
Correct Answer
(C) Crooks glass