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KCET2014PhysicsAtomic Physics

Diameter of the objective of a telescope is ( 200 ~cm ). What is the resolving power of a telescope ( ? ) Take wavelength of light ( =5000 ~A ).

Options

  1. A( 6.56 10⁶ )
  2. B( 3.28 10⁵ )
  3. C( 1 10⁶ )
  4. D( 3.28 10⁶ )

Correct answer

D. ( 3.28 10⁶ )

Step-by-step solution

Resolving power of telescope is given as [ array l D 1.22 = 200 ~cm 1.22 5000 AA = 200 10⁻² ~m 1.22 5000 10⁻¹⁰ ~m =3.2786 10⁶ ~m array ] Therefore, resolving power of telescope ( =3.28 10⁶ )

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