The time by a photoelectron to come out after the photon strikes is approximately

Option 1)

10-1 s

Option 2)

10-4 s

Option 3)

10-10 s

Option 4)

10-16 s

Answers (1)

As we learnt in

Photoelectric Effect -

It is the emission of electrons (photoelectron) when light strikes a surface.

- wherein

X-rays ,\gamma-rays ,UV -rays ,visible light and even infra red rays of suitable frequency.

 

 Time taken is of the order of nanosecond i.e. around 10-10 sec.

Correct answer is 3.


Option 1)

10-1 s

This is an incorrect option.

Option 2)

10-4 s

This is an incorrect option.

Option 3)

10-10 s

This is the correct option.

Option 4)

10-16 s

This is an incorrect option.

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