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NEET UG PHYSICS MCQ: RAY OPTICS
1
Easy
1 of 1
Understanding
+4 | -1
Assertion (A): Speed of light is independent of
its colour only in vacuum.
Reason (R): Red colour light travels slower
than violet colour light in glass.
its colour only in vacuum.
Reason (R): Red colour light travels slower
than violet colour light in glass.
View answer and explanation
Correct option: B
(A) is correct but (R) is not correct
Option B ((A) is correct but (R) is not correct) is correct because the speed of light is independent of color in vacuum, but red light travels faster than violet light in glass.
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Statement-A: The minimum distance between an object and its real image formed by a convex lens is .
Statement-B: The distance between an object and its real image is minimum when its magnification is -1. Assertion: We cannot produce a real image by plane or convex mirrors under any circumstances.
Reason: The focal length of a convex mirror is always taken negative. If both the object and image are at infinite distance from a refracting telescope its magnifying power will be equal to
Statement-B: The distance between an object and its real image is minimum when its magnification is -1. Assertion: We cannot produce a real image by plane or convex mirrors under any circumstances.
Reason: The focal length of a convex mirror is always taken negative. If both the object and image are at infinite distance from a refracting telescope its magnifying power will be equal to