Home
Class 11
PHYSICS
Figure shows the orientation of two vect...

Figure shows the orientation of two vectors `u` and `v` in the `XY` plane.
if `vecu=ahati+bhatj` and `vecv=p hati+qhatj`
which of the following is correct?

A

a and p are positive while b and q are negative.

B

a,p and b are positive while q is negative.

C

a,q and b are positive while p is negative.

D

a, b, p and q are all positive.

Text Solution

Verified by Experts

The correct Answer is:
B

As per figure , in `vecu = a hati + b hatj,` both a and b are positive while in `vecv = p hati + q hatj` , p is positive and q is negative . Thus a, b and p are positive and q is negative.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOTION IN A PLANE

    NCERT FINGERTIPS ENGLISH|Exercise Assertion And Reason|15 Videos
  • MOTION IN A PLANE

    NCERT FINGERTIPS ENGLISH|Exercise Higher Order Thinking Skills|8 Videos
  • MECHANICAL PROPERTIES OF SOLIDS

    NCERT FINGERTIPS ENGLISH|Exercise Assertion And Reason|15 Videos
  • MOTION IN A STRAIGHT LINE

    NCERT FINGERTIPS ENGLISH|Exercise NCERT Exemplar|6 Videos

Similar Questions

Explore conceptually related problems

Figure shows the orientation of two vectors u and v in the XY-plane If u = ahati + bhatj and v =phati + qhatj which of the following is correct ?

If veca lies in the plane of vectors vecb and vecc , then which of the following is correct?

A particle of mass m with an initial velocity u hati+2u hatj collides with a particle of mass 3m at rest. After collision, the two particles stick together and the combined particle moves with a velocity v hati+v' hatj . Which of the following is incorrect?

Figure shows three vectors veca, vecb and vecc , where R is the midpoint of PQ. Then which of the following relations is correct?

Figure shows roughly how the force F between two adjacent atoms in a solid varies with inter atomic separation r. Which of the following statements are correct ?

Figure shows three vectors veca, vecb and vecc where R is the midpoint of PQ. Then which of the following relations is correct?

Figure shows three vectors veca,vecb and vecc . If bar(RQ)=2bar(PR) , which of the following relation is correct :-

A vector vecv or magnitude 4 units is equally inclined to the vectors hati+hatj, hatj+hatk, hatk+hati, which of the following is correct? (A) vecv=4/sqrt(3)(hati-hatj-hatk) (B) vecv=4/sqrt(3)(hati+hatj-hatk) (C) vecv=4/sqrt(3)(hati+hatj+hatk) (D) vecv=4(hati+hatj+hatk)

Figure show's three vectors p,q and r where C is the mid - point of AB Then which of the following relation is correct ?

Figure shows the displacement -time curve of the particles P and Q. Which of the following statement is correct ?