Assertion & Reason

MCQ 11 Mark

Assertion : Small gaps left between railway lines.
Reason : It allows for contraction of rails during summer.

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 reason is not the correct explanation of the assertion.
✓
The assertion is true, but the reason is false.
D
The assertion is false, but the reason is true.

Answer

Correct option: C.

The assertion is true, but the reason is false.

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MCQ 21 Mark

Assertion : Temperature is the measure of the heat energy.
Reason : Energy is the capacity to do work.

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 reason is not the correct explanation of the assertion.
C
The assertion is true, but the reason is false.
✓
The assertion is false, but the reason is true.

Answer

Correct option: D.

The assertion is false, but the reason is true.

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MCQ 31 Mark

Assertion : Radiation is a process of transfer of heat in which a material medium is not necessary.
Reason : The heat from the sun reaches us through millions of miles of empty space by convection.

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 reason is not the correct explanation of the assertion.
✓
The assertion is true, but the reason is false.
D
The assertion is false, but the reason is true.

Answer

Correct option: C.

The assertion is true, but the reason is false.

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MCQ 41 Mark

Assertion : When a very hot liquid is poured into a thick glass tumbler it cracks.
Reason : Unequal expansion of the inner and outer glass walls causes the glass to crack.

✓
Both assertion and reason are true and the 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
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 51 Mark

Consider the statement given below and choose the correct option.
Assertion: A system can be converted from one state to another state.
Reason: It takes place when the temperature of the system is constant.

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

Answer

Correct option: A.

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

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MCQ 61 Mark

Consider the statement given below and choose the correct option.
Assertion: Radiation is a form of heat transfer which takes place only in vacuum.
Reason: The thermal energy is transferred from one part of a substance to another part without the actual movement of the atoms or molecules.

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

Answer

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

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Science Assertion & Reason

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