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Assertion: Multiplying any vector by an ...

Assertion: Multiplying any vector by an scalar is meaningful operatons.
Reason: In uniform motion spedd remains constant.

A

If both assetion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion

C

If assertion is true but reason is false

D

If the assertion and reason both are false.

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The correct Answer is:
B
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ERRORLESS -VECTORS-Exercise
  1. Assertion: Two vectors are said to be like vectors if they have same d...

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  2. Assertion: The scalar product of two vectors can be zero Reason: If...

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  3. Assertion: Multiplying any vector by an scalar is meaningful operatons...

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  4. Assertion: A null Veactor is a vector whose magnitude is zero and dire...

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  5. Assertion: If dot product and cross product of vec(A) and vec(B) are z...

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  6. Assertion: The cross product of a vector with itself is a null vector....

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  7. Assertion: The minimum number of non-coplanar Vectors whose sum can be...

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  8. Assertion: If vec(A).vec(B)= vec(B).vec(C ), then vec(A) may not alway...

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  9. Assertion: Vector addition is commutative. Reason: (vecA+vecB)!=(vec...

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  10. 0.4hat(i)+0.8hat(j)+chat(k) represents a unit vector, when c is :-

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  11. The angles with a vector hat(i)+hat(j)+sqrt(2hat(k)) makes with X,Y an...

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  12. The value of a unit vector in the direction of vector A=5hat(i)-12hat(...

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  13. Which of the following is independing of the choice of co-ordinate sys...

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  14. A car travles 6km towards north at an angle of 45^(@) to the east and ...

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  15. Given that vecA+vecB+vecC=0, out of three vectors two are equal in mag...

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  16. Two forces F(1)=1N and F(2)=2N act along the lines x=0 and y=0, respec...

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  17. At what angle must the two forces (x+y) and (x-y) act so that the resu...

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  18. Following forces start acting on a particle at rest at the origin of t...

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  19. The resultant of vec(A)+vec(B) is vec(R )(1). On reversing the vector ...

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  20. Figure below shows a body of mass M moving with the uniform speed on a...

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