The energy gap of silicon is $1.14 e V$ . The maximum wavelength at which silicon starts energy absorption, will be
( $h = 6.62$ $\times$ $10$ $^{- 34}$ $J s$ , $c = 3$ $\times$ $10$ $^{8}$ $m / s$ )

10.888

\circ A

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108.88

\circ A

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1088.8

\circ A

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10888

\circ A

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Solution

The correct option is D $10888$ $\circ A$
$λ = \frac{h c}{E} = \frac{6.62 \times 10^{- 34} \times 3 \times 10^{8}}{(1.14 \times 1.6 \times 10^{- 19})} = 10888 \circ A$

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The energy gap of silicon is 1.14 eV. The maximum wavelength at which silicon starts energy absorption, will be (h=6.62 ×10−34Js, c=3 × 108m/s)

The correct option is D 10888∘Aλ=hcE=6.62×10−34×3×108(1.14×1.6×10−19)=10888∘A

The energy gap of silicon is $1.14 e V$ . The maximum wavelength at which silicon starts energy absorption, will be
( $h = 6.62$ $\times$ $10$ $^{- 34}$ $J s$ , $c = 3$ $\times$ $10$ $^{8}$ $m / s$ )

The correct option is D $10888$ $\circ A$
$λ = \frac{h c}{E} = \frac{6.62 \times 10^{- 34} \times 3 \times 10^{8}}{(1.14 \times 1.6 \times 10^{- 19})} = 10888 \circ A$