Home
Class 11
PHYSICS
What is the angle between vec(a) and vec...

What is the angle between `vec(a)` and `vec(b)` :
(i) Magnitude of `vec(a)` and `vec(b)` are `3` and `4` respectively.
(ii) Area of triangle made by `vec(a)` and `vec(b)` is 10.

A

Question can be solved by information I only.

B

Question can be solved by information II only

C

Question can be solved by information I and II in combined form only.

D

Question can not be solved by both the informations only.

Text Solution

Verified by Experts

The correct Answer is:
D
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MISCELLANEOUS

    ALLEN |Exercise Exercise-04 [A]|28 Videos

  • MISCELLANEOUS

    ALLEN |Exercise Exersice-4[B]|14 Videos

  • MISCELLANEOUS

    ALLEN |Exercise Comprehension 4|6 Videos

  • KINEMATICS (MOTION ALONG A STRAIGHT LINE AND MOTION IN A PLANE)

    ALLEN |Exercise BEGINNER S BOX-7|8 Videos

  • PHYSICAL WORLD, UNITS AND DIMENSIONS & ERRORS IN MEASUREMENT

    ALLEN |Exercise EXERCISE-IV|7 Videos

Similar Questions

Explore conceptually related problems

Angle between vec(a) and vec(b) is 60^(@) then

Find the angle between two vectors vec(a) and vec(b) with magnitudes 1 and 2 respectively and when vec(a).vec(b)=1 .

Knowledge Check

  • If theta is angle between two vectors vec(a) and vec(b) then vec(a).vec(b)ge 0 only when …….

    A
    `0lt theta lt (pi)/(2)`
    B
    `0 le theta le (pi)/(2)`
    C
    `0 lt theta lt pi`
    D
    `0 le theta le pi`

  • Let the vectors vec(a) and vec(b) be such that |vec(a)|=3 and |vec(b)|=(sqrt(2))/(3) , then vec(a)xx vec(b) is a unit vector, if the angle between vec(a) and vec(b) is…….

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

    • Similar Questions

    Explore conceptually related problems

    Find the angle between two vectors vec(a) and vec(b) with magnitudes sqrt(3) and 2, respectively having vec(a).vec(b)=sqrt(6) .

    For two vectors vec(a) and vec(b),|vec(a)|=4,|vec(b)|=3 and vec(a).vec(b)=6 find the angle between vec(a) and vec(b) .

    The vector (vec(a)+3vec(b)) is perpendicular to (7 vec(a)-5vec(b)) and (vec(a)-4vec(b)) is perpendicular to (7vec(a)-2vec(b)) . The angle between vec(a) and vec(b) is :

    Answer the following : (i) Can 2 similar vectors of different magnitude yield a zero resultant? Can 3 yield? (ii) Can vec(a)+vec(b)=vec(a)-vec(b) ? (iii) If vec(a)+vec(b)=vec(c) & |vec(a)|+|vec(b)|=|vec(c)| . What further information you can have about these vectors. (iv) If vec(a) & vec(b) are two non zero vectors such that |vec(a)+vec(b)|=|vec(a)+vec(b)| , then what is the angle between vec(a) & vec(b) . (v) Time has a magnitude & direction. Is it a vector? (iv) When will vec(a)xxvec(b)=vec(a).vec(b) ? (vii) Does the unit vectors vec(i), vec(j) & vec(k) have units?

    If |vec(a)|=2|vec(b)|=5 and |vec(a)xx vec(b)|=8 then find vec(a).vec(b) .

    If |vec(a)xx vec(b)|=vec(a).vec(b) then find the angle between vec(a) and vec(b) .

    Home
    Profile