Given A = i +2 j -3 k . When a vector B is added to A , we get a unit vector along…
Physics · JEE Main · NTA Exams — Physics and Measurement
Given \(\vec{A}=\hat{i}+2 \hat{j}-3 \hat{k}\). When a vector \(\stackrel{\rightharpoonup}{\mathrm{B}}\) is added to \(\overrightarrow{\mathrm{A}}\), we get a unit vector along X–axis. Then, \(\stackrel{\rightharpoonup}{\mathrm{B}}\) is
- \(-2 \hat{\mathrm{j}}+3 \hat{\mathrm{k}}\)
- \(-\hat{\mathrm{i}}-2 \hat{\mathrm{j}}\)
- \(-\hat{\mathrm{i}}+3 \hat{\mathrm{k}}\)
- \(2 \hat{\mathrm{j}}-3 \hat{\mathrm{k}}\)
Answer
(A) -2 j +3 k
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The initial and final temperature of a substance are (30.5 0.5) K and (86.3 0.3) K respectively. The rise in…
- One of the rectangular components of a velocity of 60 kmh –1 is 30 km h –1 . The other rectangular component…
- If the unit of force is 1 kilo newton, the length is 1 km and time 100 s, what will be the unit of mass?
- Three forces of magnitudes 6 N, 6 N and 72 N act at a corner of a cube along three sides as shown in figure…
- The dimension of 1 2 L C is (where L and C indicate inductance and capacitance respectively)
- A cube has a side of length 1.2 10^ -2 ~m . Its volume is
- The angle between A and B is θ. The value of the triple product A ( ~B A ) is
- A vector F _ 1 is along the positive Y–axis. If its vector product with another vector F _ 2 is zero, then F…
More Physics and Measurement questions · Browse all practice questions