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- Assertion: The number of photons emitted per second by a point source of light is directly proportional to the power of the source and inversely proportional to the energ
- #Class 12
- #Physics
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- #Joint Entrance Examination Main
- #Dual Nature of Matter and Radiation
Assertion: The number of photons emitted per second by a point source of light is directly proportional to the power of the source and inversely proportional to the energy of each photon.
Reason: The equation relates the number of photons emitted per second (n) to the power of the source (P), the wavelength of light emitted
, and fundamental physical constants (h and c). This equation shows that increasing the power of the source or decreasing the energy of each photon will result in an increase in the number of photons emitted per second.
Both assertion and reason are true, and the reason is the correct explanation of the assertion.
Both assertion and reason are true, but the reason is NOT the correct explanation of the assertion.
Assertion is true, but the reason is false.
Assertion is false, but the reason is true.
Answers (1)
The assertion and reason are both true, and the reason is the correct explanation of the assertion. The equation shows that the number of photons emitted per second is directly proportional to the power of the source and inversely proportional to the energy of each photon. This means that increasing the power of the source or decreasing the energy of each photon will increase the number of photons emitted per second. This relationship is a fundamental aspect of the behavior of light and is essential in many areas of physics, including optics, spectroscopy, and quantum mechanics. Therefore, option (A) is the correct answer.
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