Page 2 - HA-Dual nature of light
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11 The work function, for a certain metal is 4.2 eV Will this metal give photoelectric emission for
incident radiation of wavelength is 330 nm?
12 Define the term “stopping potential” in relation to photoelectric effect.
13 Write laws of photoelectric effect.
14 Explain Davission and Germer experiment.
15 How does photo electric current varies with frequency of light.
16 How does photo electric current varies with intensity of light.
17 What is dual nature of light? Find the expression for mater wave.
18 How the work function is calculated from graph drawn between stopping potential and
frequency of light.
19 Why the graphs drawn between stopping potential and frequency of light for two different
metals are parallel?
20 Derive the expression for de broglie’s wave of an electron moving inside electric field.
