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The two vectors vec(A) and vec(B) are dr...

The two vectors `vec(A)` and `vec(B)` are drawn from a common point and `vec(C)=vec(A)+vec(B)` then angle between `vec(A)` and `vec(B)` is

A

`90^(@)` if `C^(2)=A^(2)+B^(2)`

B

greater than `90^(@)` if `C^(2)ltA^(2)+B^(2)`

C

greater then `90^(@)` if `C^(2)gtA^(2)+B^(2)`

D

less than `90^(@)` if `C^(2)gtA^(2)+B^(2)`

Text Solution

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The correct Answer is:
A, B, D
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Knowledge Check

  • Two vectors vec(A) and vec(B) are such that |vec(A)+vec(B)|=|vec(A)-vec(B)| then what is the angle between vec(A) and vec(B) :-

    A
    `0^(@)`
    B
    `90^(@)`
    C
    `60^(@)`
    D
    `180^(@)`

  • If vec(a).vec(b)=|vec(a)xx vec(b)| , then angle between vector vec(a) and vector vec(b) is :

    A
    `(pi)/(2)`
    B
    `(pi)/(6)`
    C
    `(pi)/(4)`
    D
    `(pi)/(3)`

  • Two vectors vec(a) and vec(b) are such that |vec(a)+vec(b)|=|vec(a)-vec(b)| . What is the angle between vec(a) and vec(b) ?

    A
    `0^(@)`
    B
    `90^(@)`
    C
    `60^(@)`
    D
    `180^(@)`
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