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Cathode Ray Experiment

The energy ga...

Question

The energy gap of silicon is 1.14 eV .The maximum wavelength ( in Angstrom) at which silicon will begin absorbing energy is ( Take $h c = 12400 e V - A^{\circ}$ )

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Solution

$λ_{m a x} = \frac{h c}{E} = \frac{12400}{1.14} = 10877 Å$

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