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Standard XII
Physics
Question

Assertion :The quantity L/R possesses dimension of time Reason: To reduce the rate of increase of current through a solenoid, we should increase the time constant (L/R).
  1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
  2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
  3. Assertion is correct but Reason is incorrect
  4. Both Assertion and Reason are incorrect

A
Assertion is correct but Reason is incorrect
B
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
C
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
D
Both Assertion and Reason are incorrect
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Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
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Q3
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Reason (R) : To reduce the rate of increase of current through a solenoid, time constant (L/R) should be increased.

Based on these statements, the correct answer is -

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Q4

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Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

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(b) Assertion and reason both are wrong statements.
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