Determine the minimum multiplication of a telescope with diameter of objetive `D = 5.0cm` with which th resolving power of the objective is totally employed if the diameter of the eye's pupi is `d_(0) = 4.0mm`.

Find the minimum magnification of a microscope, whose objective's numerical apertune is sin alpha = 0.24 , at which the resolving power of the objective is totally employed if the diameter of the eye's pupil is d_(0) = 4.0mm .

At what magnification T of a telescope with a diameter of the objective D = 6.0 cm is the illuminance of the image of an object on the retina not less than without the telescope ? The pupil diameter is assumed do be equal to d_(0) = 3.0 mm . The losses of light in the telescope are negligible.

A: To increase resolving power of a telescope, the diameter of objective should be large. R: Resolving power of a telescope is given by (D)/(1.22 lambda)

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

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

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