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The photoelectric threshold wavelength for a certain metal is
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Correct option is B
hcλ=hcλ0+kE kE=12400(12000−14000) =124004000=3.1evSimilar Questions
Figure shows the stopping potential (V)versus frequency (v) graph for photoelectric effect in a metal. From the graph, The Planck's constant (h) is . The value of y is
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