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A unit radial vector vecr makes agles of...

A unit radial vector `vecr` makes agles of `a=30^(@)` relative to the x-axis, `beta=60^(@)` relative to the y-axis, and `gamma=90^(@)` relative to the z-axis. The vector `hatr` can be written as :

A

Statement-I is true, Statement-II is true, Statement-II is correct explanation for statement-I

B

Statement-I is true, Statement-II is true, Statement-II is NOT a correct explanation for statement-I

C

Statement-I is true, Statement-II is false.

D

Statement-I is false and Statement-II is true.

Text Solution

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The correct Answer is:
A
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