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Assertion : 1. In the presence of an ele...

Assertion : 1. In the presence of an electric field, the canal rays are deflected towards the negative electrode.
Reason : Canal rays are composed of electrons which are negatively charged.

A

If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.

B

If both Assertion and Reason are correct and Reason is not the correct explanation of Assertion.

C

If Assertion is correct but Reason is incorrect.

D

If Assertion is incorrect but Reason is correct.

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the given statements, we will break down the assertion and the reason step by step. ### Step 1: Understanding the Assertion The assertion states: "In the presence of an electric field, the canal rays are deflected towards the negative electrode." - **Canal Rays**: Canal rays, also known as positive rays, are streams of positively charged particles (usually protons or ions) that travel in a vacuum tube. - **Electric Field Effect**: In an electric field, positively charged particles are attracted to the negative electrode. Therefore, the assertion is correct. ### Step 2: Understanding the Reason The reason states: "Canal rays are composed of electrons which are negatively charged." - **Composition of Canal Rays**: This statement is incorrect because canal rays are not composed of electrons; they are made up of positively charged particles. Electrons are negatively charged and are not the constituents of canal rays. - Since the reason is incorrect, it does not explain the assertion. ### Step 3: Conclusion - The assertion is correct: Canal rays are deflected towards the negative electrode due to their positive charge. - The reason is incorrect: Canal rays are not composed of electrons. ### Final Answer - The assertion is true, but the reason is false. Therefore, the correct conclusion is that the assertion is correct, but the reason is not a correct explanation for the assertion. ---
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Knowledge Check

  • Assertion : In a uniform electric field electrons move in the opposite direction of electric field. Reason : This is because of the negative charge of an electron.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

  • Assertion : Electrons which constitute the current are negatively charged. Reason: Current carrying wire is negatively charged.

    A
    If both assertion and reason are true and reason is the correct explantion of assertion.
    B
    If both assertion and reason are true and reason is not the correct explantion of assertion.
    C
    If assertion is false but reason is true.
    D
    If assertion is true but reason is false.

  • Assertion : Electrostatic field lines start at positive charges and end at negative charges. Reason : Field lines are continuous curves without any breaks and they form closed loop.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.