Advertisements
Advertisements
प्रश्न
Mention the different types of photocells.
Advertisements
उत्तर
The different types of photocells:
- Photo emissive cell
- Photo voltaic cell
- Photo conductive cell
APPEARS IN
संबंधित प्रश्न
When a metallic surface is illuminated with radiation of wavelength λ, the stopping potential is V. If the same surface is illuminated with radiation of wavelength 2λ, the stopping potential is `"V"/4`. The threshold wavelength for the metallic surface is
A photoelectric surface is illuminated successively by monochromatic light of wavelength λ and `λ/2`. If the maximum kinetic energy of the emitted photoelectrons in the second case is 3 times that in the first case, the work function of the material is
A light of wavelength 500 nm is incident on a sensitive metal plate of photoelectric work function 1.235 eV. The kinetic energy of the photoelectrons emitted is (Take h = 6.6 × 10–34 Js)
Give the definition of intensity of light according to quantum concept and its unit.
Explain the effect of potential difference on photoelectric current.
Explain how frequency of incident light varies with stopping potential.
Obtain Einstein’s photoelectric equation with the necessary explanation.
Give the applications photocell.
How many photons per second emanate from a 50 mW laser of 640 nm?
Calculate the maximum kinetic energy and maximum velocity of the photoelectrons emitted when the stopping potential is 81 V for the photoelectric emission experiment.
