Assertion & Reason

MCQ 11 Mark

Assertion : Radian is the angle subtended at the centre of a circle by an arc whose length is equal to the radius of the circle.
Reason $: 1$ radian $=\frac{180}{\pi}$

✓
Both assertion and reason are true and the reason is the correct explanation of the assertion.
B
Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
C
The assertion is true, but the reason is false.
D
The assertion is false, but the reason is true.

Answer

Correct option: A.

Both assertion and reason are true and the reason is the correct explanation of the assertion.

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MCQ 21 Mark

Assertion : Temperature is a physical quantity.
Reason : Temperature is the degree of hotness or coldness of a body.

✓
Both assertion and reason are true and the reason is the correct explanation of the assertion.
B
Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
C
The assertion is true, but the reason is false.
D
The assertion is false, but the reason is true.

Answer

Correct option: A.

Both assertion and reason are true and the reason is the correct explanation of the assertion.

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MCQ 31 Mark

Assertion : The SI unit of temperature is kelvin.
Reason : Thermometers are calibrated with some standard scales like Celsius, fahrenheit and kelvin.

✓
Both assertion and reason are true and the reason is the correct explanation of the assertion.
B
Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
C
The assertion is true, but the reason is false.
D
The assertion is false, but the reason is true.

Answer

Correct option: A.

Both assertion and reason are true and the reason is the correct explanation of the assertion.

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MCQ 41 Mark

Consider the statement given below and choose the correct option.
Assertion: Radian is the unit of solid angle.
Reason: One radian is the angle subtended at the center of a circle by an arc of length equal to its radius.

A
Both assertion and reason are true and the reason is the correct explanation of the assertion.
B
Both assertion and reason are true but the reason is not the correct explanation of the assertion.
C
Assertion is true, but reason is false.
D
Both assertion and reason are false.

Answer

Assertion is false, but reason is true.
Correct explanation:
Radian is the unit of plane angle.

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MCQ 51 Mark

Consider the statement given below and choose the correct optionAssertion: Electric current, amount of substance, luminous intensity are the fundamental physical quantities.Reason: They are independent of each other.

A
Both assertion and reason are true and reason is the correct explanation of the assertion.
B
Both assertion and reason are true but reason is not the correct explanation of the assertion.
C
Assertion is true, but reason is false.
D
Both assertion and reason are false.

Answer

Both assertion and reason are true and the reason is the correct explanation of the assertion

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MCQ 61 Mark

Consider the statement given below and choose the correct option.Assertion: The SI system of units is a suitable system for measurements.Reason: The SI unit of temperature is kelvin

A
Both assertion and reason are true and reason is the correct explanation of the assertion.
B
Both assertion and reason are true but reason is not the correct explanation of the assertion.
C
Assertion is true, but reason is false.
D
Both assertion and reason are false.

Answer

Both assertion and reason are true but the reason is not the correct explanation of the assertion

Correct explanation

In the SI system, the units are precisely defined and have the same value everywhere.

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Science Assertion & Reason

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