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Free Online Mock Physics Multiple Choice Test on Opticsray
Sub Category : Opticsray Test : 13 Time Left :
1)Human eye, under ordinary light, is most sensitive with respect to
(1) Violet light (2) Blue light (3) Red-Green region (4) Yellow-Green region
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2) If a ray falls on a mirror at 30º incidences, the deviation produced by the mirror is(1) 30º (2) 60º (3) 90º (4) 120º
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3)A real object is situated at a distance f in front of a convex mirror of focal length f. The image position is
(1) Infinity (2) 2f (3) f (4) f/2
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4) A fish of length l cm is y cm under water of refractive index micorsign. Its length when viewed vertically above will be (1) lmicrosign/y (2) ymicrosign/l (3) l/microsigny (4) l
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5) Two plane mirror are held at 45º to each other. An object is placed on bisector of the angle. The number of images formed will be (1) 16 (2) 8 (3) 14 (4) 7
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