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Astronunt in space shuttle at 400 km hei...

Astronunt in space shuttle at 400 km height from Earth surface is observing Earth. If diameter of retina of his eye is 5 mm and wavelength of light is 500 nm, then it will experience the resolution of range of ......

A

0.5 m

B

5 m

C

50 m

D

500 m

Text Solution

Verified by Experts

The correct Answer is:
C
Resolution power of eye R = `1.22 (lambda)/(d)xxD`
D=400 km = 400,000 m
d=5 mm=`5xx10^(-3) m`
`lambda=500 nm=500xx10^(-9)` m
`therefore R=1.22xx(500xx10^(-9)xx4xx10^5)/(5xx10^(-3))`
`=48.8` m
`therefore R=50` m
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