The operation by square of j vector operates on a vector rotates it through an angle
A90°
B180°
C360°
D90°
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ഉത്തരാർദ്ധഗോളത്തിൽ ദൈർഘ്യമേറിയ പകലുള്ള ദിനം :
A beam of white light undergoes dispersion through a triangular glass prism forming a band of seven colours. Which of the statements is/are correct?
- a) The red-coloured component has minimum refractive index.
- (b) The violet-coloured component deviates the least.
- (c) All components of white light have same speed in glass.
The force acting on a charged particle in an external magnetic field does NOT depend on which of the following factors?
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