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The angle between the vectors (hati + ha...

The angle between the vectors `(hati + hatj) and (hatj + hatk)` is

A

`30^(@)`

B

`45 ^(@)`

C

`60^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
`(hati + hatj ) . ( hatj + hatj ) = 1 = sqrt2 xx sqrt2 cos theta `
`cos theta = (1)/(2) implies theta = 60^(@).`
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