JEE Physics Practice Question
If $$\overrightarrow A $$ and $$\overrightarrow B $$ are two vectors satisfying the relation $$\overrightarrow A $$ . $$\overrightarrow B $$ = $$\left| {\overrightarrow A \times \overrightarrow B } \right|$$. Then the value of $$\left| {\overrightarrow A - \overrightarrow B } \right|$$ will be :
- A.$$\sqrt {{A^2} + {B^2} + \sqrt 2 AB} $$
- B.$$\sqrt {{A^2} + {B^2}} $$
- C.$$\sqrt {{A^2} + {B^2} - \sqrt 2 AB} $$
- D.$$\sqrt {{A^2} + {B^2} + 2AB} $$
Want to know if you got it right?
Answer this and thousands more real JEE previous-year questions free, get graded instantly, and climb the global ranked leaderboard.
Practice JEE free →More JEE Physics questions
- A metal is heated in a furnace where a sensor is kept above the metal surface to read the …
- The isotope { }_{5}^{12} \mathrm{~B} having a mass 12.014 u undergoes \beta-decay to { }_{…
- A hydrogen atom in its ground state is irradiated by light of wavelength 970 A. Taking h c…
- Consider two solid spheres \mathrm{P} and \mathrm{Q} each of density 8 \mathrm{gm} \mathrm…
- Two inductors L_{1} (inductance 1 \mathrm{mH}, internal resistance 3 \Omega ) and L_{2} (i…
- A drop of liquid of radius \mathrm{R}=10^{-2} \mathrm{~m} having surface tension \mathrm{S…
- An electron in a hydrogen atom undergoes a transition from an orbit with quantum number n_…
- A stationary source emits sound of frequency f_{0}=492 \mathrm{~Hz}. The sound is reflecte…