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An under-water swimmer cannot see very c...

An under-water swimmer cannot see very clearly even in absolutely clear water because of

A

absorption of light in water

B

scattering of light in water

C

reduction of speed of light in water

D

change in the focal length of eye lens

Text Solution

Verified by Experts

The correct Answer is:
D

The eye lens is surrounded by a different medium than air. This will change the focal length of the eyes lens. The eye cannot accommodate all images as it would do in air.
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NCERT FINGERTIPS-RAY OPTICS AND OPTICAL INSTRUMENTS-Optical Instruments
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  5. A compound microscope consists of an objective lens with focal length ...

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  6. In a compound microscope, the focal lengths of two lenses are 1.5 cm a...

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  8. The final image in an astronomical telescope adjustment, a straingt bl...

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  9. In an astronomical telescope in normal adjustment a straight black lin...

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  12. An astronomical refractive telescope has an objective of focal length ...

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