solve this one.
Ch- Optics
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dhananjay721:
I think you need to specify whether the observer is observing from water or air.
this ia the complete question
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I love optics .....
a candel flame is held 2 m above the water level in a tank 4 m deep . if u of water is 4/3 , where will the image of candel flame be seen ??
acc to the rule ,,,
Refractive index of water = height of image of candle from water level/height of candle from water level .
From figure it is clear that ,
Height of image from water level is (h + 2)m
Height of candle from water level is 2m
And refractive index of water is μ = 4/3
so, μ = 4/3 = (h + 2)/2
(h + 2) = 8/3 = 2.67 m
Hence, image of candle from water level is 2.67 m
Or image of candle from Ground level is (4 + 2.67) m = 6.67m
this is your answer.......
a candel flame is held 2 m above the water level in a tank 4 m deep . if u of water is 4/3 , where will the image of candel flame be seen ??
acc to the rule ,,,
Refractive index of water = height of image of candle from water level/height of candle from water level .
From figure it is clear that ,
Height of image from water level is (h + 2)m
Height of candle from water level is 2m
And refractive index of water is μ = 4/3
so, μ = 4/3 = (h + 2)/2
(h + 2) = 8/3 = 2.67 m
Hence, image of candle from water level is 2.67 m
Or image of candle from Ground level is (4 + 2.67) m = 6.67m
this is your answer.......
can you explain your answer
answer given is 2 metres from the surface of water
Have you got the answer
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0
Hope it helps you, if not please tell us.
Thank you!
Thank you!
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Light is not entering in water it just reflects from its surface and travels in air.
so light can never enter water
yes
Actually, some amount of light gets refracted and some reflected.
The one in 1st case is of some amount which refracts, and in 2nd case the amount of light which reflects.
and how you find that in second case reflection will be more than refraction
If we are observing from air, then we would only get reflected rays in our eyes, because the rays which are refracted went inside the water.
thanks for the help.
Now, is it clear or not?
thanks for the try.
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