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प्रश्न
As the intensity of incident light increases ______
पर्याय
photoelectric current increases
photoelectric current decreases.
the kinetic energy of emitted photoelectrons increases
the kinetic energy of emitted photoelectrons decreases.
उत्तर
As the intensity of incident light increases photoelectric current increases.
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संबंधित प्रश्न
Choose the correct option.
Polychromatic (containing many different frequencies) radiation is used in an experiment on the photoelectric effect. The stopping potential ______.
What is the photoelectric effect?
Is it always possible to see the photoelectric effect with a red light?
Using the values of work function given in the following table, tell which metal will require the highest frequency of incident radiation to generate photocurrent.
Typical values of work function for some common metals
| Metal | Work function (in eV) |
| Potassium | 2.3 |
| Sodium | 2.4 |
| Calcium | 2.9 |
| Zinc | 3.6 |
| Silver | 4.3 |
| Aluminium | 4.3 |
| Tungsten | 4.5 |
| Copper | 4.7 |
| Nickel | 5.0 |
| Gold | 5.1 |
The electrons are emitted in the photoelectric effect from a metal surface.
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With the help of a circuit diagram describing an experiment to study the photoelectric effect.
The maximum velocity of the photoelectron emitted by the metal surface is v. Charge and the mass of the photoelectron is denoted by e and m, respectively. The stopping potential in volt is ______.
The maximum velocity of photoelectron emitted is 4.8 m/s. If the e/m ratio of the electron is 1.76 × 1011 C/kg, then stopping potential is given by ______
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In photoelectric effect, graph of saturation current versus frequency of light is plotted. The nature of the graph will be ____________.
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(h = 6.63 × 10-34 Js, c = 3 × 108 ms-1)
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The following graphs show the variation of stopping potential corresponding to the frequency of incident radiation (ν) for a given metal. The correct variation is shown in graph [ν0 = threshold frequency].
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(A) |
(B) |
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(C) |
(D) |
Give Einstein's explanation of the photoelectric effect.
By increasing the voltage in an electron diffraction tube, the radius of the diffraction rings will ______.
