Assertion: In the measurement of physica...

Assertion: In the measurement of physical quantities direct and indirect methods are used.
Reason : The accuracy and precision of measuring instruments along with errors in measurements should be taken into account, while expressing the result.

Assertion is correct, reason is correct, reason is a correct explanation for assertion.

Assertion is correct, reason is correct, reason is not a correct explanation for assertion

Assertion is correct, reason is incorrect

Assertion is incorrect, reason is correct

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The correct Answer is:

A : The maximum possible error in a reading is taken as least count of the measuring instrument. R : Error in a measurement cannot be greater than least count of the measuring instrument.

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

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

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

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

If both assertion and reason are true and reason is the correct explanation of assertion.

If both assertion and reason are true but reason is not the correct explanation of assertion.

If assertion is true but reason is false.

If assertion is false but reason is true.

Optometer

Chronometer

Pyrhreliometer

Refractometer