## Category: Dual Nature of Radiation and Matter

## Show that the wavelength of electromagnetic radiation is equal to the de Broglie wavelength of its quantum (photon).

## For what kinetic energy of a neutron will the associated de Broglie wavelength be 1.40 × 10– 10m?

For what kinetic energy of a neutron will the associated de Broglie wavelength be 1.40 × 10– 10m? b) Also find the de Broglie wavelength of a neutron, in thermalequilibrium with matter, having an average kinetic energy of(3/2) k T at 300 Read More …

## An electron and a photon each have a wavelength of 1.00 nm. Find a) Their momenta,

## What is the de Broglie wavelength of a) a bullet of mass 0.040 kg travelling at the speed of 1.0 km/s,

What is the de Broglie wavelength of a) a bullet of mass 0.040 kg travelling at the speed of 1.0 km/s, b) a ball of mass 0.060 kg moving at a speed of 1.0 m/s, and c) a dust particle Read More …

## The wavelength of light from the spectral emission line of sodium is 589 nm. Find the kinetic energy at which

## What is the a) momentum,

## Calculate the a) momentum, and

## Light of wavelength 488 nm is produced by an argon laser which is used in the photoelectric effect. When light from this spectral line is incident on the emitter, the stopping (cut-off) potential of photoelectrons is 0.38 V. Find the work function of the material from which the emitter is made.

Light of wavelength 488 nm is produced by an argon laser which is used in the photoelectric effect. When light from this spectral line is incident on the emitter, the stopping (cut-off) potential of photoelectrons is 0.38 V. Find the work function Read More …