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Light Emitting Diode

24.The work f...

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24.The work function of caesium is 2.14 eV . Find the wavelength of the incident light of the photocurrent is brought to 0 by a stopping potential of 0.60 V

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Q. The work function of caesium is 2.14 eV. Find a) the threshold frequency for caesium and b) the wavelength of the incident light if photocurrent is brought to zero by stopping potential of 0.60 V.

Q. Work function of caesium is

2.14 e V

. What is the wavelength of incident light if photocurrent is brought to zero by a stopping potential of

0.6 V

?

Q. Work function of caesium is

2.14 e V

. What is the wavelength of incident light if photocurrent is brought to zero by a stopping potential of

0.6 V

?

Q. The work function of caesium metal is 2.14 eV. When light of frequency 6 ×1014Hz is incident on the metal surface, photoemission of electrons occurs. What is the (a) maximum kinetic energy of the emitted electrons, (b) Stopping potential, and (c) maximum speed of the emitted photoelectrons?

The work function of caesium metal is 2.14 eV. When the light of frequency

6 \times 10^{14} H z

is incident on the metal surface, photoemission of electrons occurs. Calculate:

(a) the maximum kinetic energy of the emitted electrons,

(b) stopping potential,

(c) the maximum speed of the emitted photoelectrons?

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