Assertion (A) & Reason (B) MCQ

MCQ 11 Mark

Assertion : At the pole, the value of acceleration due to gravity (g) is greater than equator.
Reason : Earth rotates on its axis in addition to revolving around the sun.

✓
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 assertion is false but reason is true.

Answer

Correct option: A.

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

(a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion

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MCQ 21 Mark

Assertion : The period of revolution of a satellite around a planet is directly proportional to the radius of the orbit of the satellite.
Reason : Artificial satellites do not follow Kepler’s Laws of motion.

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. ,
✓
If assertion is true but reason is false.
D
If assertion is false but reason is true.

Answer

Correct option: C.

If assertion is true but reason is false.

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MCQ 31 Mark

Assertion : The outer planets are called as Terrestial Planets.
Reason : Outer planets are made up of hydrogen, helium and other gases in huge amounts and have very dense atmospheres.

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.
✓
If assertion is false but reason is true.

Answer

Correct option: D.

If assertion is false but reason is true.

(d) Assertion is false but reason is true
Assertion : The outer planets are called as Gas giants.

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MCQ 41 Mark

Assertion: Sun is a medium-sized star.
Reason: Sun is situated at the centre of the solar system.

A
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. ,
C
If assertion is true but reason is false.
D
If assertion is false but reason is true.

Answer

Correct option: B.

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

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

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MCQ 51 Mark

Assertion: Earth appears bluish-green.
Reason: This is due to the reflection of light from water and land mass on its surface.

✓
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 assertion is false but reason is true.

Answer

Correct option: A.

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

(a) If both assertion and reason are true and Reason is the correct explanation of Assertion.

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Science Assertion (A) & Reason (B) MCQ

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