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The vector ` vec a` has the components `2p` and 1 w.r.t. a rectangular Cartesian system. This system is rotated through a certain angle about the origin in the counterclockwise sense. If, with respect to a new system, ` vec a` has components `(p+1)a n d1` , then `p` is equal to
a. `-4` b. `-1//3` c. `1` d. `2`

A

p=0

B

p=1 or `p-1/3`

C

`p=-1` or `p=1/3`

D

p=1 or `p=-1`

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The correct Answer is:
B
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VMC MODULES ENGLISH-VECTORS -LEVEL -1
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