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**[SOLVED] Resolving Distant Objects question**

Consider a telescope with a small circular aperture of diameter 2.0 centimeters.

If two point sources of light are being imaged by this telescope, what is the maximum wavelength (lambda) at which the two can be resolved if their angular separation is 3.0 x 10^-5 radians?

Relevant equation - sin(theta) = 1.22 x lambda/D

I get - Dsin(theta)/1.22 = lambda

0.02 x sin(3.0 x 10^-5)/1.22 = lambda

= 4.92 x 10^-7

therefore lambda = 0.492 nm

It doesn't seem correct. Any help would be very appreciated.