Assertion: Vector `(hati+hatj+hatk)` is perpendicular to `(hati-2hatj+hatk)`
Reason: Two non-zero vectors are perpendicular if their dot product is equal to zero.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are false.

Answer

3

Explanation

`L=(I)^(n)(d)^(y)(f)^(z)`
`L=(M^(1)L^(0)T^(-3))^(x)(M^(1)L^(-3))^(y)(T^(-1))^(2)`
`L=M^(x+y)L^(-3y)T^(-3xx-2)`
`-3y=1 " " x+y=0`
`y=-1/3 " " x-1/3=0`
`x=1/3`
`L=(I)^(1//3)(d)^(-1//3)(f)^(2)`
`n=3`