Question

Q.10 When polarity of collector plate is reversed.
(a) only slow electrons reach collector
(b) only very fast electrons reach collector
(c) no electrons can reach collector
(d) all electrons move towards emitter.​

Answer 1

Answer:

the ans is the d mark me brainless

Answer 2

When polarity of collector plate is reversed (D) all electrons move towards emitter.​

Explanation:

• Usually in the experimental set up of Photoelectric effect polarity plays a major role and has a close link with the electrons.  
• Collector placed is first placed fixing a polarity and when the experiment is done, electrons are generated. If the polarity is changed between the experiment, the electrons which are emitted changes its direction and moves towards the emitter itself.  
• Usually, the electrons are negatively charged.

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