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प्रश्न
In a photoelectric experiment, the stopping potential is 1.5V. What is the maximum kinetic energy of a photoelectron?
उत्तर
Given:
Vs = 1.5 V
To find: Maximum kinetic energy = ?
We know that KEmax = eVs
= 1.6 × 10-19 × 1.5
∴ KE max = 2.4 × 10-19 J
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संबंधित प्रश्न
Given the following data for incident wavelength and the stopping potential obtained from an experiment on the photoelectric effect, estimate the value of Planck's constant and the work function of the cathode material. What is the threshold frequency and corresponding wavelength? What is the most likely metal used for emitter?
| Incident wavelength (in Å) | 2536 | 3650 |
| Stopping potential (in V) |
1.95 | 0.5 |
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