269i mean u help..i need them urgently :)
a> a fish at a depth d below the water sees a bird flying at a height h above the ground at an apparent distance......???
b> a double convex lens , made of a material of refractive index μ is placed inside two liquids of refractive indices μ2 and μ3. the no of images that will be formed...???
c> give the ratio of velocities of light rays of wavelength 4000 Ao
and 8000 Ao.
d> an object placed at 72cm away from glass-water surface , inside water. at what point it will appear from the glass. (μg=3/2 , μw=4/3)?
e> if a fish is 40.0 cm below the surface of a pond , how deep does the fish appear to be to an observer directly above the surface of the pond? given aμw= 1.33
plzz...i help i need them urgently for my exam
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3 Answers
1161a) apparent distance: d+hμ
b) question not clear
c) Just take the ratio of their wavelengths (assuming their frequencies are same)
d)question not that clear
e) 40/(4/3)= 30 cm
269sir can u explain the 1st 1..
another question-
how many images will be formed if two mirrors are fitted on the adjacent walls nd 1 mirror on roof?
plzz..also show hw did u get the answer?
thnzxx.. in advance