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check Wether the vector ((hati)/sqrt (2)...

check Wether the vector `((hati)/sqrt (2)+(hatj)/sqrt(2))` is a unit vector or not .

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are fals

Text Solution

Verified by Experts

The correct Answer is:
B
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