a point source S is placed midway btw 2 converging mirrors having equal focal length f find d values of d fr which only 1 image is formed
a light ray falling at an angle of 450
with d surface of a clean slab of ice of thickness 1m is refracted into it at an angle of 300 calculate d time taken by d light rays to cross d slab speed of light in vacuum = 3 x 10^8m/s
a vessel contains water upto a height of 20cm & above it an oil upto another 20 cm d 
1=1.33 2=1.30
find d apperent depth of d vessel when viewed 4m above
find d max angle of refractionwhen a light ray is refracted 4m d glass( =1.5) to air
Moderation Team
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