English

Answer the Following Question. Plot a Graph of Photocurrent Versus Anode Potential for Radiation of Frequency ν and Intensities I1 And I2 (I1 < I2). - Physics

Advertisements
Advertisements

Question

Answer the following question.
Plot a graph of photocurrent versus anode potential for radiation of frequency ν and intensities I1 and I2 (I1 < I2).

Diagram
Advertisements

Solution

Graph of photocurrent versus anode potential for radiation of frequency ν and intensities I1 and I2 (I1 < I2):

shaalaa.com
Experimental Study of Photoelectric Effect
  Is there an error in this question or solution?
2018-2019 (March) 55/1/3

RELATED QUESTIONS

Every metal has a definite work function. Why do all photoelectrons not come out with the same energy if incident radiation is monochromatic? Why is there an energy distribution of photoelectrons?


Can a photon be deflected by an electric field? Or by a magnetic field?


It is found that yellow light does not eject photoelectrons from a metal. Is it advisable to try with orange light or with green light?


It is found that photosynthesis starts in certain plants when exposed to sunlight, but it does not start if the plants are exposed only to infrared light. Explain.


Light of wavelength λ falls on a metal with work-function hc/λ0. Photoelectric effect will take place only if


A point source of light is used in a photoelectric effect. If the source is removed farther from the emitting metal, the stopping potential


A beam of white light is incident normally on a plane surface absorbing 70% of the light and reflecting the rest. If the incident beam carries 10 W of power, find the force exerted by it on the surface.

(Use h = 6.63 × 10-34J-s = 4.14 × 10-15 eV-s, c = 3 × 108 m/s and me = 9.1 × 10-31kg)


When a metal plate is exposed to a monochromatic beam of light of wavelength 400 nm, a negative potential of 1.1 V is needed to stop the photo current. Find the threshold wavelength for the metal.

(Use h = 6.63 × 10-34J-s = 4.14 × 10-15 eV-s, c = 3 × 108 m/s and me = 9.1 × 10-31kg)


In photoelectric effect, the photoelectric current started to flow. This means that the frequency of incident radiations is ______.


What is the effect of threshold frequency and stopping potential on increasing the frequency of the incident beam of light? Justify your answer.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×