A star is emitting light at the wavelength of `5000 overset@A`, Determine the limit of resolution of a telescope, having an objective of diameter of 200 inch.

Calculate the energy of a photon in a light of wavelength 5000overset@ A.

In a biprism experiment , the slit is illuminated by a light of wavelength of 5000 overset (@)(A) . The distance between the slit and eyepiece is 1 m . If the distance between the two virtual sources is 0.25 cm , then distance between fifth bright band on one side and the sixth dark band on the other sideof the central bright band will be

In a biprism experiement, the slit is illuminated by light of wavelength 4800 overset@A . The distance from the slit to the screen is 1 metre. If the distance between the two virtual sources is 0.3 cm, determine the distance between the 5th bright band on one side and 5th dark band on the other side.

The work function for a metal surface is 2.2 eV. If light of wavelength 5000 overset (@)(A) isincident on the surface of the metal,find the threshold frequency and incident frequency.Will there be an emission of photoelectrons or not?

In a biprism experiment , the distance between the slit and the focal plane of the eyepiece is 1.2 m and the wavelength of light used is 5000 overset (@)(A) . When a convex lens is interposed (between the biprism and eyepiece) the images of the slits in the two positions are 5 mm and 1.8 mm apart . The distance between the centre of the pattern and twelfth dark band is

When a surface is irradiated with light of wavelength 4950 overset(@)(A) ,a photocurrent appears which vanishes if a retarding potential greater than 0.6 V is applied across the phototube.When different source of light is used,it is found that the critical retarding potential is changed to 1.1 V.Find the work function of the emitting surface and the wavelength of the second source

The wavelength of monochromatic light is 5000 overset (@)(A) in air . What will be its wavenumber in a medium of refractive index 1.5 ?

If a light of wavelength 5000overset@ A is incident on a metal surface of work function 6 eV, emission of photoelectrons is possible or not? [h = 6.63 xx 10^-34 J-S, C = 3 xx 10^8 m//sec] .

If the shift of wavelength of light emitted by a star is towards violet, then this shows that star is