Advertisements
Advertisements
Question
Mention the different types of photocells.
Advertisements
Solution
The different types of photocells:
- Photo emissive cell
- Photo voltaic cell
- Photo conductive cell
APPEARS IN
RELATED QUESTIONS
Photons of wavelength λ are incident on a metal. The most energetic electrons ejected from the metal are bent into a circular arc of radius R by a perpendicular magnetic field having magnitude B. The work function of the metal is
What is the photoelectric effect?
How does photocurrent vary with the intensity of the incident light?
How will you define threshold frequency?
What is a surface barrier?
Briefly discuss the observations of Hertz, Hallwachs and Lenard.
List out the laws of photoelectric effect.
Explain experimentally observed facts of the photoelectric effect with the help of Einstein’s explanation.
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
At the given point of time, the earth receives energy from the sun at 4 cal cm–2 min–1. Determine the number of photons received on the surface of the Earth per cm2 per minute. (Given: Mean wavelength of sunlight = 5500 Å)
