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If veca and vecb are the two vectors vec...

If `veca and vecb` are the two vectors `vecR` resultant of `veca, vecb` as shown.

`{:("List-I", "List-II"),("A: component of" veca "along" vecb,(1) a^(2)+b^(3)),("B: component of" vecb "along" veca,(2)0),("C: component of R along" veca,(3) R sin alpha),("D: component of R along" veca,(R) R cos alpha):}`

A

a-1, b-2, c-3, d-4

B

a-2,b-2,c-3,d-4

C

c-2,d-4,a-2,d-2

D

a-2,b-1, c-4, d-3

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • If a,b are the magnitudes of vectors veca & vec b and veca vecb=0 the value of |vecx xx vecb| is

    A
    0
    B
    ab
    C
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    `a//b`

  • If a,b are the magnitudes of vectors veca & vecb and veca.vecb=0 the value of |vecaxxvecb| is

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    `ab`
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    `sqrt(ab)`
    D
    `a//b`

  • a,b are the magnitudes of vectors veca & vecb . If vecaxxvecb=0 the value of veca.vecb is

    A
    `0`
    B
    `sqrt(ab)`
    C
    `ab`
    D
    `a//b`

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