Physics · Electrostatics
An electron with kinetic energy K1 enters between the parallel plates of a capacitor at an angle 'α' with the plates. It leaves the plates at an angle 'β' with the plates with kinetic energy K2. Then the ratio of kinetic energies K1 : K2 will be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1cos2(β)cos2(α)✓
- 2sin2(β)cos2(α)
- 3cos(β)sin(α)
- 4cos(β)cos(α)
Correct answer
cos2(β)cos2(α)
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