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When the same monochromatic ray of
light travels through glass slab and
through water, the number of waves in
glass slab of thickness 6 cm is same as in
water column of height 7 cm. If refractive
index of glass is 1.5 then refractive index
of water is
(Chap-10)
A) 1.258
C 1.286
B) 1.269
D) 1.310

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