In a photoelectric experiment, if both the intensity and frequency of the incident light are doubled, then the saturation photoelectric current
- remains constant
- is halved
- is doubled
- becomes four times
The Correct Option is C
Solution and Explanation
Thus, the saturation photoeiectric current is doubled.
Top Questions on Dual nature of radiation and matter
- An electron and an alpha particle are accelerated by the same potential difference. Let λe and λα denote the de-Broglie wavelengths of the electron and the alpha particle, respectively, then:
- NEET (UG) - 2024
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- Dual nature of radiation and matter
- Which of the following phenomena does not explain by wave nature of light.
(A) reflection
(B) diffraction
(C) photoelectric effect
(D) interference
(E) polarization
Choose the most appropriate answer from the options given below :- JEE Main - 2024
- Physics
- Dual nature of radiation and matter
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Number of photons increases with increase in frequency of light.
Reason (R): Maximum kinetic energy of emitted electrons increases with the frequency of incident radiation.
In the light of the above statements, choose the most appropriate answer from the options given below:- JEE Main - 2024
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- Dual nature of radiation and matter
The work functions of Caesium (Cs), Potassium (K) and Sodium (Na) are 2.14eV, 2.30 eV and 2.75eV respectively. If incident electromagnetic radiation has an incident energy of 2.20eV, which of these photosensitive surfaces may emit photoelectrons?
- NEET (UG) - 2023
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- The work function for two metals are 9eV and 4.5eV. Find the approx. difference between their threshold wavelength. (use hc = 1240 eV - nm)
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- \(∫xlog(1+x^2)dx=\)?
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- A uniform thin rod of mass 3kg has a length of 1m. If a point mass of 1kg is attached to it at a distance of 40cm from its center,the center of mass shifts by a distance of:
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Concepts Used:
Dual Nature of Radiation and Matter
The dual nature of matter and the dual nature of radiation were throughgoing concepts of physics. At the beginning of the 20th century, scientists untangled one of the best-kept secrets of nature – the wave-particle duplexity or the dual nature of matter and radiation.
Electronic Emission
The least energy that is needed to emit an electron from the surface of a metal can be supplied to the loose electrons.
Photoelectric Effect
The photoelectric effect is a phenomenon that involves electrons getting away from the surface of materials.
Heisenberg’s Uncertainty Principle
Heisenberg’s Uncertainty Principle states that both the momentum and position of a particle cannot be determined simultaneously.