The aperture of the largest telescope in teh world is of the order of 5m.If the separation between the moon nd the earth is `4 xx 10^5` km and teh wavelength of visible ligth is of the order of `5,000 overset A`,then the minimum separation between objects on the surface of the moon,which can be just resolved is

A telescope is used to resolve two stars separated by 4.6 xx 10^(-6) radian.If the wavelength fo light used is 5,460 overset @A ,what shold be the aperture of the objective of the telescope?

The time period of a satellite is 5 hours. If the separate between the earth and the satellite is increased 4 times, what will be the new time period?

Diameter of human eye lens is 2 mm.What will be the minimum distance between two points to resolve them,which are situated at a distacne of 50 m from eye?The wavleength of ligth is 5,000 overset @A .

An astonaut is lookin down on earth's surface from a space shuttle at an altitude of 400 km.Assuming that the astronaut's pupil diamter is 5 mm and the wavelength of visible ight is 500 nm,The astonaurt will be able to resolve linear objects of the size of about:

A telescope has an objective lens of 10 cm diameter and is situated at a distance of 1 km from two objects.The can be resolved by the telescope, when the mean wavelength of light is 5,000 overset @A ,is of the order of

For the same objective,find the ratio of the least separation between two points to be distinguished by a icroscope for light of 5,000 overset @A and elecrons accelerated though 100 V used as the illuminating substance.

What is the minimum angular separation between two stars ,if a telesope is used to observe them witha n objective of aperture 0.2 m?The wavelength of light used is 5,900 A .

A currentof 5.0 A is flowing in eah of the two parallel conductors of infinite length separated by certain distance apart in vacuum in the same directions. Each conductor expereinces a force of 2xx10^-4N m^-1 due to the other. Find the separation between the two conductors.

Diffraction of light Diffraction of light is the phenomenon of bending of light round corners of an obstacle or aperture and spreading into the geometrical shadow of the diffracting object. The condition for diffraction of light is the size of the aperture should be comparable to the wavelength of incident light. so in daily life, we find that diffraction of sound is more common than the diffraction of light. width of central maxima is {formula= ((2lambdaD)/d) } Two student are separated by a 5 m partition wall in a room that is 10 m high. if both light and sound waves bend around obstacles, we find that the students are unable to see the each other even though they can converse easily. it is due to