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KVPY2014PhysicsCapacitance

An electron enters a parallel plate capacitor with horizontal speed and is found to deflect by angle on leaving the capacitor as shown. It is found that =0.4 and gravity is negligible If the initial horizontal speed is doubled,then tan will be :

Options

  1. A0.1
  2. B0.2
  3. C0.8
  4. D1.6

Correct answer

A. 0.1

Step-by-step solution

v _ y = ay t v _ y = e E ~m l u v _ x = u = e El mu ² ₁ ₂ =4 ₂= ₁ 4 =0.1

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