Which of the following statements is correcta)The current in a photoce...
i) Photocell depends upon the amount of light falls on it, not on the frequency.
ii) The photocurrent is proportional to the intensity of incident light, not on the applied voltage.
iii) Photoelectric current increases with an increase in intensity.
iv) Stopping potential increases with increase in Kinetic energy which depends upon the frequency, not on the intensity.
So, the correct answer is (c).
Which of the following statements is correcta)The current in a photoce...
Photocurrent and Intensity of Light
Introduction
A photocell or a photodiode is a device that converts light energy into electrical energy. It is a semiconductor device that is used to detect light in a variety of applications, including photography, light meters, and solar cells. When light falls on the photocell, electrons and holes are generated in the semiconductor material, which results in a flow of current.
Photocurrent
The current that flows through a photocell is called photocurrent. The magnitude of photocurrent depends on the intensity and frequency of the incident light. When the intensity of the incident light is increased, the number of electrons and holes generated in the semiconductor increases, resulting in an increase in the current flowing through the photocell.
Intensity of Light and Photocurrent
The statement "The photocurrent increases with increasing intensity of light" is correct. The relationship between the intensity of light and the photocurrent can be expressed as:
Iph ∝ Iinc
Where Iph is the photocurrent, and Iinc is the intensity of the incident light.
This means that if the intensity of the incident light is doubled, the photocurrent will also double. The relationship between the intensity of light and the photocurrent is linear, and it holds true as long as the intensity of the light is not too high.
Conclusion
In conclusion, the correct statement is that the photocurrent increases with increasing intensity of light. The intensity of light is directly proportional to the current flowing through the photocell, and doubling the intensity of light will result in a doubling of the photocurrent.