A 100 W sodium lamp radiates energy uniformly in all directions. The lamp is located at the centre of a large sphere that absorbs all the sodium light which is incident on it. The wavelength of the sodium light is 589 nm
What is the energy per photon associated with the sodium light ?

A 100 W sodium lamp radiates energy uniformly in all directions. The lamp is located at the centre of a large sphere that absorbs all the sodium light which is incident on it. The wavelength of the sodium light is 589 nm At what rate are the photons delivered to the sphere ?

The wavelength of light from the spectral , emission line of sodium is 589 nm. Find the kinetic energy at which, a neutron would have the same de Broglie wavelength .

The wavelength of light from the spectral , emission line of sodium is 589 nm. Find the kinetic energy at which, an electron would have the same de Broglie wavelength .

The wavelength and intensity of the incident light is 4000 overset@ A and 0.1 W respectively. What is the minimum change in the light energy? What is the number of incident photons?

The wavelength and intensity of the incident light are 4000 overset(@)( A) and 0.1(W)/m^2 respectively.What is the minimum change in the light energy? What is the number of incident photons?

In an experiment with Fresnel biprism sodium light is used and bands 0.0196 cm in width are observed at the distance of 100 cm from the slit. A convex lens is placed between the biprism and the slit. If the distance between the slit and screen is one meter, the magnified distance apart of the images is found to be 0.7 cms, the lens being 30 cm from the slit, calculate the wavelength of light.

A biprism is placed 5 cm from slit illuminated by sodium light of wavelength 5890 overset (@)(A) The width of the fringes obtained on a screen 75cm from the biprism is 9.424 xx 10^-2 cm . What is the distance between two coherent sources ?