Home
Class 11
PHYSICS
If vec A + vec B = vec A- vec B, then v...

If ` vec A + vec B = vec A- vec B`, then vec B` is a…………………………….. .

Text Solution

Verified by Experts

null vector
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS

    PRADEEP|Exercise 4 Fill in the blanks|11 Videos

  • KINEMATICS

    PRADEEP|Exercise 1 NCERT multiple|11 Videos

  • KINEMATICS

    PRADEEP|Exercise 2 Fill in the blanks|10 Videos

  • GRAVIATION

    PRADEEP|Exercise Assertion-Reason Type Questions|19 Videos

  • LAWS OF MOTION

    PRADEEP|Exercise Assertion- Reason Type Questions|17 Videos

Similar Questions

Explore conceptually related problems

Choose the correct statement (A) If vec A+vec B=vec A-vec B then vec B is a null vector (B) If |vec A+vec B|=|vec A-vec B| then vec A and vec B are perpendicular vectors (c) Both of the above (D) None of the above

For tow vectros vec A and vec B | vec A + vec B| = | vec A- vec B| is always true when.

Establish the following inequalities geometrically or otherwise , (a) | vec A + vec B| -lt | vec A | + |vec B| , | vec A + vec B| gt- ||vec A- | vec B|| (C ) | vec A- vec B| -lt | vec A| + vec B| (d) | vec A- vec B| gt- || vec A| - | vec B|| When does the equality sign above aplly ?

If vec a = vec i + vec j + vec k, vec b = vec i - vec j + vec k and vec c = vec i + 2vec j - vec k, then the value of | [vec a.vec a, vec a.vec b, vec a.vec c], [vec b.vec a, vec b.vec b, vec b.vec c], [vec c.vec a, vec c.vec b, vec c.vec c ] | is equal to: (1) 2 (2) 4 (3) 16 (4) 64

if | vec a | = | vec b | = | vec a + vec b | = 1 then | vec a-vec b |

For any three non-zero vectors vec a, vec b and vec c if | (vec a xxvec b) * vec c | = | vec a || vec b || vec c | then vec a * vec b + vec b * vec c + vec c * vec a =

In a regular hexagon A B C D E F ,\ A vec B=a ,\ B vec C= vec b\ a n d\ vec C D=c Then\ vec A E= a. vec a+ vec b+ vec c b. 2 vec a+ vec b+ vec c c. vec b+ vec c d. vec a+2 vec b+2 vec c

Vectors vec Aa n d vec B satisfying the vector equation vec A+ vec B= vec a , vec Axx vec B= vec ba n d vec A*vec a=1,w h e r e vec aa n d vec b are given vectors, are a. vec A=(( vec axx vec b)- vec a)/(a^2) b. vec B=(( vec bxx vec a)+ vec a(a^2-1))/(a^2) c. vec A=(( vec axx vec b)+ vec a)/(a^2) d. vec B=(( vec bxx vec a)- vec a(a^2-1))/(a^2)

For non-zero vectors vec a and vec b if |vec a+vec b|<|vec a-vec b|, then vec a and vec b are

If vec a and vec b are orthogonal unit vectors, then for a vector vec r noncoplanar with vec a and vec b , vector rxxa is equal to a. [ vec r vec a vec b] vec b-( vec r. vec b)( vec bxx vec a) b. [ vec r vec a vec b]( vec a+ vec b) c. [ vec r vec a vec b] vec a-( vec r. vec a) vec axx vec b d. none of these