bar(a)=2bar(i)-3bar(j)+6bar(k) and bar(b...

`bar(a)=2bar(i)-3bar(j)+6bar(k)` and `bar(b)=-2bar(i)+2bar(j)-bar(k)` then `("Proj"_(bar(b))bar(a))/("Proj"_(bar(a))bar(b))=`.......

A

`(3)/(7)`

B

`(7)/(3)`

C

3

D

7

Text Solution

Verified by Experts

The correct Answer is:

B

Topper's Solved these Questions

VECTOR ALGEBRA
KUMAR PRAKASHAN|Exercise Practice Paper - 10 (Section-A)|6 Videos
VECTOR ALGEBRA
KUMAR PRAKASHAN|Exercise Practice Paper - 10 (Section-B)|4 Videos
VECTOR ALGEBRA
KUMAR PRAKASHAN|Exercise Solutions of NCERT Exemplar Problems (True/False)|5 Videos
THREE DIMENSIONAL GEOMETRY
KUMAR PRAKASHAN|Exercise PRACTICE PAPER -11|16 Videos

Similar Questions

Explore conceptually related problems

If bar(a) = 3 bar(i) + 4 bar(j) + bar(k) and bar(b) = bar(i) + bar(j) - bar(k) , then "Comp"_(bar(b))bar(a)= . . . .

If |bar(x)+bar(y)|=|bar(x)-bar(y)| , then

If bar(a)=bar(i)+bar(j)+bar(k) and bar(b)=bar(j)-bar(k) , then find a vector vec( c ) such that bar(a)xx bar( c )=bar(b) and bar(a).bar( c )=3 .

For vectors bar(a),bar(b),bar( c ),|bar(a)-bar( c )|=|bar(b)-bar( c )| then the value (bar(b)-bar(a)).(bar( c )-(bar(a)+bar(b))/(2))= ………..

If |bar(a)|=2,|bar(b)|=4,|bar( c )|=1 and bar(a)+bar(b)=-bar( c ) then bar(a).bar(b)+bar(b).bar( c )+bar( c ).bar(a) = ……………

If |bar(a)|=2,|bar(b)|=4,|bar( c )|=1 and bar(a)+bar(b)=-bar( c ) then bar(a).bar(b)+bar(b).bar( c )+bar( c ).bar(a)= ……………

bar( r )xx bar(a)=bar(b)xx bar(a),bar( r )xx bar(b)=bar(a)xx bar(b),bar(a) ne bar(0),bar(b) ne bar(0)bar(a)ne lambda bar(b) . If bar(a).bar(b)=0 then bar( r ) = ………….

bar(a)=2bar(i)-3bar(j)+2bar(k) and bar(b)=2bar(i)+3bar(j)+bar(k) are the sides of triangle OAB. Then its area is …… seq. unit.

KUMAR PRAKASHAN-VECTOR ALGEBRA -Solutions of NCERT Exemplar Problems (Multiple Choice Questions (MCQs) )

The angle between the unit vectors bar(a) and bar(b) is theta. If bar(...
Text Solution
|
For unit vectors bar(a) and bar(b), if bar(a)+2bar(b) and 5bar(a)-4bar...
Text Solution
|
bar(a)=2bar(i)-3bar(j)+6bar(k) and bar(b)=-2bar(i)+2bar(j)-bar(k) then...
Text Solution
|
bar(b)=3hatj+4hatk,bar(a)=hati+hatj. If bar(b(1)) and bar(b(2)) are co...
Text Solution
|
The unit vector bar(a) and bar(b) are perpendicualr to each other. The...
Text Solution
|
Vector bar(a)=6hati-3hatj,bar(b)=2hati-6hatj and bar( c )=-2hati+21hat...
Text Solution
|
bar(a),bar(b) and bar( c ) are unit vectors. The value of |bar(a)-bar(...
Text Solution
|
If bar(a),bar(b) and bar( c ) are perpendicualr to bar(b)+bar( c ),bar...
Text Solution
|
bar(a) and bar(b) are unit vectors. |bar(a)+bar(b)|=sqrt(3) then the v...
Text Solution
|
DeltaABC is an equilateral triangle. Its side is l. Any point P lies o...
Text Solution
|
vec(a)=2hati+hatj+hatk and vec(b)=hati-hatj-hatk are the adjacent side...
Text Solution
|
The position vectors of four points A, B, C and D in the plane are vec...
Text Solution
|
If vec(alpha)=(1)/(a)hati+(4)/(b)hatj+b hatk and vec(beta)=b hati+a ha...
Text Solution
|
The unit vectors vec(a),vec(b) and vec( c ) are not coplanar. If vec(a...
Text Solution
|
If vec(x)+vec(y)+vec(z)=0 and |vec(x)|=|vec(y)|=|vec(z)|=2 If the angl...
Text Solution
|
vec(a)=2hati-hatj+hatk,vec(b)=hati+2hatj-hatk,vec( c )=hati+hatj-2hatk...
Text Solution
|
vec(a)=hati+hatj+sqrt(2)hatk,vec(b)=b(1)hati+b(2)hatj+sqrt(2)hatk and ...
Text Solution
|
vec(a)=2hati+lambda(1)hatj+3hatk,vec(b)=4hati+(3-lambda(2))hatj+6hatk ...
Text Solution
|
squareABCD is a parallelogram vec(AB)=bar(q),vec(AD)=bar(p),angleBAC i...
Text Solution
|
The position vectors of A, B and C are 2hati-hatj+hatk,hati-3hatj-5hat...
Text Solution
|