Assertion: The earth is slowing down and...

Assertion: The earth is slowing down and as a result the moon is coming nearer to it. Reason: The angular momentum of the earth moon system is not conserved.

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

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

C. if assertion is true, but reason is false

D. if both assertion and reason are false

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Direction. In the follwing questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as (A). If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if asssertion is true, but reason if false, (D) if both assertion and reason are false Assertion : The true geogrpahic north direction is found by using a compass needle. Reason : The magnetic meridian of the earth is along the axis of rotation of the earth.

The weight of an object on the moon is…….. of its weight on the earth.

The diameter of the moon is approximately one fourth the diamter of the earth. Find the ratio of their surface area.

These questions consist of two statement each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion. B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. Assertion: Presently the global atmosphere is warming up. Reason. The depletion of stratospheric ozone layer has resulted in increase in UV radiations reaching earth.

MODERN PUBLICATION-Unit Test - Gravitation-Example

Assertion: The square of the period of revolution of a planet is propo...
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Assertion: If the radius of the earth's orbit around the sun were twic...
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Assertion: The earth is slowing down and as a result the moon is comin...
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Assertion: The length of the day is slowly increasing Reason: The dom...
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Assertion: The mass of the earth in terms of g, Rand G is given by M=g...
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The change in the value of g at a height h h lt lt R above the surface...
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Assertion: A tennis ball bounces higher on hills than in plains Reason...
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Assertion: Average density of the earth depends on the value of g Rea...
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Assertion: The earth without its atmosphere would be inhospitably cold...
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Assertion: The time period of an earth satellite in a circular orbit i...
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Assertion: The geostationary satellites are launched, so as to revolve...
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Assertion: The time-period of pendulum on a satellite orbiting the ear...
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A planet of mass m moves around the sun of mass M in elliptical orbit....
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The duration of day is highest in :
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A ball is thrown upwards with a velocity of 100 ms^-1. It will reach t...
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A ball is thrown upwards with a velocity of 19.6 ms^-1. The maximum he...
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What would be the acceleration due to gravity at another planet, whose...
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If a planet existed whose mass and radius were both half of that of th...
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When the radius of earth is reduced by 1 % without changing the mass, ...
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The mass of the planet is 1/9th of the mass of the earth and its radiu...
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