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प्रश्न
Mention the different types of photocells.
उत्तर
The different types of photocells:
- Photo emissive cell
- Photo voltaic cell
- Photo conductive cell
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संबंधित प्रश्न
The threshold wavelength for a metal surface whose photoelectric work function is 3.313 eV is __________.
Explain the effect of potential difference on photoelectric current.
Explain how frequency of incident light varies with stopping potential.
List out the laws of photoelectric effect.
Explain the quantum concept of light.
Give the construction and working of photo emissive cell.
Calculate the energies of the photons associated with the following radiation:
- violet light of 413 nm
- X-rays of 0.1 nm
- radio waves of 10 m
When a light of frequency 9 × 1014 Hz is incident on a metal surface, photoelectrons are emitted with a maximum speed of 8 × 105 ms−1. Determine the threshold frequency of the surface.
A 3310 Å photon liberates an electron from a material with energy 3 × 10−19 J while another 5000 Å photon ejects an electron with energy 0.972 × 10−19 J from the same material. Determine the value of Planck’s constant and the threshold wavelength of the material.
UV light of wavelength 1800 Å is incident on a lithium surface whose threshold wavelength is 4965 Å. Determine the maximum energy of the electron emitted.
