Calculate and compare the energies of two radiations one with a wavelength of 800 nm and other with wavelength of 400 nm.

In a double slit experiment the distance between the slits is 3 mm and the slits are 2 m away from the screen. Two interference patterns can be seen on the screen one due to light with wavelength 480 nm, and the other due to light with wavelength 600 nm. what is the separation on the screen between the fifth order bright frings of the two interference patterns?

An electron and a photon each have a wavelength of 1.00 nm. Find their momenta?

Calculate wavenumber of yellow radiation having wavelength 5800 A*

Calculate the photon energy in electron- volt for radiation of wavelength 1 metre.

An electron and a photon each have a wavelength of 1.00 nm. Find the kinetic energy of electron.

Which of the following radiations has the least wavelength?

An electron and a photon each have a wavelength of 1.00 nm. Find the energy of the photon?