A 5- 1010 photons of wavelength 900 nm incident on a photodiode while at the terminal of the device total 3- 1010 electons collected- The responsivity R of the photodiode at given wavelength in A-W is Take h-6-624- 10-34Js

Responsitivty R=η eλhc n=total electrons collectedtotal photons incident =3× 10^105× 10^10 =0.6 R=0.6× 1.6× 10^ 19× 900× 10^ 96.624× 10^ 34× 3× 10^8 R=0.435 ( A ...

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Standard XII

Physics

Creating AM

A 5× 1010 pho...

Question

A $5 \times 10^{10}$ photons of wavelength $900 n m$ incident on a photodiode while at the terminal of the device total $3 \times 10^{10}$ electons collected. The responsivity (R) of the photodiode at given wavelength $($ in $A / W)$ is $($ Take $h = 6.624 \times 10^{- 34} J s)$

0.217

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0.435

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0.652

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Solution

The correct option is B $0.435$
Responsitivty $R = \frac{η e λ}{h c}$
$n = \frac{total electrons collected}{total photons incident}$
$= \frac{3 \times 10^{10}}{5 \times 10^{10}}$
$= 0.6$
$R = \frac{0.6 \times 1.6 \times 10^{- 19} \times 900 \times 10^{- 9}}{6.624 \times 10^{- 34} \times 3 \times 10^{8}}$
$R = 0.435 (\frac{A}{W})$

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A 5×1010 photons of wavelength 900 nm incident on a photodiode while at the terminal of the device total 3×1010 electons collected. The responsivity (R) of the photodiode at given wavelength (in A/W) is (Take h=6.624×10−34Js)

The correct option is B 0.435Responsitivty R=ηeλhc n=total electrons collectedtotal photons incident =3×10105×1010 =0.6 R=0.6×1.6×10−19×900×10−96.624×10−34×3×108 R=0.435(AW)

A $5 \times 10^{10}$ photons of wavelength $900 n m$ incident on a photodiode while at the terminal of the device total $3 \times 10^{10}$ electons collected. The responsivity (R) of the photodiode at given wavelength $($ in $A / W)$ is $($ Take $h = 6.624 \times 10^{- 34} J s)$