A stream of charged particles enter into a region with crossed electric and magnetic fields as shown in the figure below. On the other side is a screen with a hole that is right on the original path of the particles. Then,
A stream of charged particles enter into a region with crossed electric and magnetic fields as shown in the figure below. On the other side is a screen with a hole that is right on the original path of the particles. Then,
- [KVPY 2009]
- A
no particle can get through the hole
- B
all particles can get through the hole
- C
only positively charged particles with speed $\frac{E}{B}$ can get through the hole
- D
all particles with speed $\frac{E}{B}$ can get through the hole
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