De Broglie Wavelength and Photons – Rankers Physics

Photoelectric Effects and deBroglie Equation: Practice Problem & Solution

Given below are two statements: Statement-I: The de Broglie wavelength (\(\lambda\)) associated with a moving particle is related to its momentum (\(p\)) as \(\lambda = \frac{h}{p}\). Statement-II: Photons are electrically neutral and are not deflected by electric and magnetic fields. In the light of above statements choose the most appropriate answer from the options given below.
Statement-I is correct but statement-II is incorrect
Statement-I is incorrect but statement-II is correct
Both statements-I and II are correct
Both statements-I and II are incorrect

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Photoelectric Effects and deBroglie Equation. Understanding the underlying formula is key to arriving at the correct answer below:

Statement-I is the basic de Broglie relationship \(\lambda = h/p\) which is correct. Statement-II is also correct as photons carry no charge and do not interact with electromagnetic fields.

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