In microscope, write the effect of wavelength of light on magnifying power.

If the focal length of the objective lens and the eye lens are 4 mm and 25 mm respectively in a compound microscope. The length of the tube is 16 cm . Find its magnifying power for relaxed eye position

Most effective wavelength of light for photosynthesis is

A : The objective and the eye-piece of a compound microscope should have short focal lengths. R : Magnifying power of a compound microscope is inversely proportional to the focal lengths of both the lenses.

The focal lengths of the objective and eye - lens of a microscope are 1cm and 5 cm respectively. If the magnifying power for the relaxed eye is 45 , then the length of the tube is

In a simple microscope, if the final image is located at infinity then its magnifying power is

When an object is viewed with a light of wavelength 6000Å under a microscope, its resolving power is 10^(4) . The resolving power of the microscope when the same object is viewed with a light of wavelength 4000Å , is nxx10^(3) . The vlaue of n is

A person uses + 1.5 D glasses to have normal vision from 25 cm onwards. He uses a 20 D lens as a simple microscope to see an object. Calculate the maximum magnifying power, if he uses the microscope (a) together with his glasses (b) without the glasses.

A compound microscope consists of an objective lens with focal length 1.0 cm and eye piece of the focal length 2.0 cm and a tube 20 cm from eye lens. Now final image is formed at the near point of eye, so find the magnifying power of microscope.

The magnification produced by the objective lens and the eye lens of a compound microscope are 25 and 6 respectively. The magnifying power of this microscope is

The minimum magnifying power of a telescope is M. If the focal length of its eyelens is halved, the magnifying power? will become