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Two vectors vecA and vecB are such that ...

Two vectors `vecA` and `vecB` are such that `vecA+vecB=vecA-vecB`. Then

A

`vecA.vecB=0`

B

`vecAxxvecB=0`

C

`vecA=0`

D

`vecB=vec0`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • The vector vecA and vecB are such that |vecA+vecB|=|vecA-vecB| . The angle between vectors vecA and vecB is -

    A
    `90^(@)`
    B
    `60^(@)`
    C
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    A
    `90^(@)`
    B
    `60^(@)`
    C
    `75^(@)`
    D
    `45^(@)`

  • If vectors vecA and vecB are such that |vecA+vecB|= |vecA|= |vecB| then |vecA-vecB| may be equated to

    A
    `(sqrt3)/(2) |vecA|`
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    `|vecA|`
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