What is the de Broglie wavelength of a nitrogen molecule in air at 300K? Assume that the molecule is moving with the root-meansquarespeed of molecules at this temperature. (Atomic mass of nitrogen = 14.0076 u)

What is the de Broglie wavelength of a nitrogen molecule in air at 300K? Assume that the molecule is moving with the root-meansquarespeed of molecules at this temperature. (Atomic mass of nitrogen = 14.0076 u)

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 …

Light of frequency 7.21 × 1014 Hz is incident on a metal surface. Electrons with a maximum speed of 6.0 × 105 m/s are ejected from the surface. What is the threshold frequency for photoemission of electrons?

Light of frequency 7.21 × 1014 Hz is incident on a metal surface. Electrons with a maximum speed of 6.0 × 105 m/s are ejected from the surface. What is the threshold frequency for photoemission of electrons?

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