[" 0.4It "0.8hat jmath+chat k" represents a unit vector when "c" is "],[[" (1) "-0.2," (2) "sqrt(0.2)," (3) "sqrt(0.8)," (4) "0]]

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

0.4 hat(i)+0.8 hat(j) + c hat(k) represents a unit vector when c is :

0.4 hat(i)+0.8 hat(j) + c hat(k) represents a unit vector when c is :

Find out unit vector of vector vec(A) = 3 hat(i) - 2 hat(j) + 4 hat(k)

Unit vector along the vector hat(i) + hat(j) + hat(k) is

Find the unit vector of the vector vec(r ) = 4hat(i) - 2hat(j) + 3 hat(k)

[" An electric dipole with dipole moment "],[vec p=(hat 3+4hat jmath)C-m," is kept in electric field "],[vec E=0.4kN/Chat i" .What is the torque acting "],[" on it & the potential energy of the dipole? "],[[" (A) "1600(N times m)hat k,-1200J],[" (B) "-1600(N times m)hat k,1200J],[" (C) ",-1600(N times m)hat k,-1200J],[" (D) ",1600(N times m)hat k,1200J]]

The unit vector perpendicular to the vectors hat(i) -hat(j) + hat(k), 2hat(i) + 3hat(j) -hat(k) is