Assertion (A) : X - ray astronomy is possible only from satellites orbiting the earth. Reason (R ) : X - rays coming from extra terrestrial objects are scattered by the earth.s atmosphere.

Assertion (A) : X - ray astronomy is possible only from satellites orb

1.	Assertion (A) : X - ray astronomy is possible only from satellites orbiting the earth. Reason (R ) : X - rays coming from extra terrestrial objects are scattered by the earth.s atmosphere.
Answer» If both assertion and rason are TRUE and the reason is the CORRECT EXPLANATION of the assertion. If both assertion and reason are true but reason is not the correct explanation of the assertion. If assertion is true but reason is false. If the assertion is false but reason is true. Solution :X-ray telescopes have extremely high VALUE of resolving power but these cannot be setup on the earth because X-rays are altogether scattered by earth.s atmosphere when X-rays coming from outer UNIVERSE pass through the atmosphere.

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Assertion (A) : X - ray astronomy is possible only from satellites orbiting the earth. Reason (R ) : X - rays coming from extra terrestrial objects are scattered by the earth.s atmosphere.

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