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In a photoelectric experiment, a metal is irradiated with light of energy 6.56 eV. If a stopping potential of 1.04 V is required, what is the work function of the metal?
 eV

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. When green light from a mercury lamp (𝜆 = 546.1 nm) is used, a stopping potential of 0.838 V reduces the photocurrent to zero.

(a) Based on this measurement, what is the work function for this metal?
 eV

(b) What stopping potential would be observed when using light from a red lamp (𝜆 = 632.0 nm)?
 V

Solve

Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. When green light from a mercury lamp (𝜆 = 546.1 nm) is used, a stopping potential of 0.838 V reduces the photocurrent to zero.

(a) Based on this measurement, what is the work function for this metal?
 eV

(b) What stopping potential would be observed when using light from a red lamp (𝜆 = 632.0 nm)?
 V

Determine the work function of metal if it is illuminated with a light of frequency 3.38 x 1015 Hz, for stopping the energetic ejected electrons, a stopping potential of 9.00 V is required.

(a) 5.02 x 104 eV

(b) 5.02 eV

(c) 5.02 x 10-6 eV

(d) 0.00502 eV

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