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If vec(a) is a non-zero vector of modulu...

If `vec(a)` is a non-zero vector of modulus a and `lamda` is a non-zero scalar and `lamda vec(a)` is a unit vector, then

A

`lamda = +- 1`

B

`vec(a) = |lamda|`

C

`vec(a)= (1)/(|lamda|)`

D

`vec(a) = (1)/(lamda)`

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The correct Answer is:
C
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PUNEET DOGRA-VECTOR-Prev Year Questions
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  9. In a right angled triangle hypotenuse AC= p, then vec(AB). vec(AC ) + ...

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  10. Find th esine of angles between vectors vec(a)= 2hat(i) - 6hat(j) - 3h...

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  12. In a triangle ABC, if taken in order, consider the following statement...

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  13. A spacecraft at hat(i) + 2hat(j) + 3hat(k) is subjected to a force la...

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  14. What is (vec(a)- vec(b)) xx (vec(a) + vec(b)) equal to ?

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  15. Let vec(a).vec(b) and vec(c ) be three mutually perpendicular vectors ...

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  16. If |vec(a) | = 3, |vec(b)|= 4 and |vec(a)- vec(b)|=5, then what si the...

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  17. A unit vector perpendicular to each of the vectors 2hat(i) - hat(j) + ...

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  18. If vec(r )= x hat(i) + y hat(j) + z hat(k), then what is vec(r ). (ha...

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  19. Let |vec(a)| # 0.|vec(b)| ne 0 (vec(a) + vec(b)). (vec(a) + vec(b)) = ...

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