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A : Particles such as photon or neutrino...

A : Particles such as photon or neutrino which have no rest mass are uncharged.
R : Charge cannot exist without mass.

A

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).

B

B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).

C

C. If Assertion is true statement but Reason is false, then mark (3).

D

D. If both Assertion and Reason are false statements, then mark (4).

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the given assertion and reason, we can break down the problem step by step: ### Step 1: Understand the Assertion The assertion states that particles such as photons or neutrinos, which have no rest mass, are uncharged. - **Explanation**: Photons are massless particles that carry electromagnetic radiation, while neutrinos are also very light particles with negligible mass. Both types of particles do not possess an electric charge. ### Step 2: Understand the Reason The reason states that charge cannot exist without mass. - **Explanation**: This statement implies that for a particle to have charge, it must also have mass. However, this is not entirely accurate since particles like electrons have mass and charge, while photons, which are massless, do not carry charge. ### Step 3: Analyze the Relationship Between Assertion and Reason Now we need to determine if the reason provides a correct explanation for the assertion. - **Assertion Validity**: The assertion is true; photons and neutrinos are indeed uncharged and have no rest mass. - **Reason Validity**: The reason is misleading. While it is true that many charged particles have mass, it is not universally true that charge cannot exist without mass, as photons are an example of massless particles that do not carry charge. ### Step 4: Conclusion Both the assertion and reason are true, but the reason does not correctly explain the assertion. Therefore, the correct conclusion is that the assertion is true, but the reason is false. ### Final Answer - **Assertion (A)**: True - **Reason (R)**: False
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