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Statement-1: Moon has no atmosphere. S...

Statement-1: Moon has no atmosphere.
Statement-2: Due to less gravity moon is unable to retain its atmosphere.

A

Statement-1 is true, statement-2 is true, statement-2 is a correct explanation for statement-1

B

Statement-1 is true, statement-2 is true, statement-2 is not a correct explanation for statement-1

C

statement-1 is true, statement-2 is false

D

statement-1 is false, statement-2 is true

Text Solution

Verified by Experts

The correct Answer is:
A
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Why the moon has no atmosphere ?

Lack of atmosphere around the Moon is due to

Knowledge Check

  • The Moon has no atmosphere because

    A
    acceleration due to gravity on the surface of the moon is greater than that on the surface of the earth.
    B
    it is far away from the earth.
    C
    it is not a planet.
    D
    the escape velocity on its surface is very small.

  • The earth retains its atmosphere, due to

    A
    the special shape of the earth
    B
    the escape velocity being greater than the mean
    C
    the escape velocity being smaller then the mean speed of the molecules of the atmospheric gases.
    D
    the sun's gravitational effect.

  • Assertion : Moon has no atmosphere. Reason : The escape velocity for moon is less than that for earth.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion
    B
    If both assertion and reason are truebut reason is not the correct explanation of assertion
    C
    If assertion is true but reason is false
    D
    If both assertion and reason are false.

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    Why does Moon have no atmosphere'?

    A block of ice on earth floats on water with 9//10 of its volume submerged. Statement-1: On moon the block of ice would float on water with less than 9//10 of its volume submerged. Statement-2: The acceleration due to gravity on moon surface is less than that on earth.

    There is no atmosphere.on moon because

    Statement-1: Presence of excess of CO_(2) in atmosphere can increase the temperature of earth's atmosphere and Statement-2: CO_(2) is colourless and odourless gas.

    A ball floats on the surface of water in a container exposed to atmosphere. Statement-1 : If the container is shifted to moon, the ball will rise a little (gravity on moon is (1)/(6) th that on the earth). And Statement-2 : Buoyant force on the ball will decrease.

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