1.

Diameter of the objective of a telescope is 200 cm. What is the resolving powerof a telescope ? Take wavelength of light =5000 Å.

Answer»

`6.56 XX 10^(6)`
`3.28 xx 10^(5)`
`1 xx 10^(6)`
`3.28 xx 10^(6)`

Solution :`RP = (D)/(1.22 lambda) = (2)/(1.22 xx 0.5 xx 10^(-6)) = (4)/(1.22) xx 10^(6)= 3.28 xx 10^(6)`


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