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The diameter of an objective of a telesc...

The diameter of an objective of a telescope, which can just resolve two stars situated at angular displacement of `10^(-4)` degee, should be `(lambda = 5000 Å)`

A

35 m

B

35 cm

C

5 m

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
`theta=(1.22lamda)/(D)`
`:.D=(1.22xx5xx10^(-7)xx57)/(10^(-4))=35cm`
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