Question 255: Waves Optics

Question

Assuming human pupil to have radius of 0.25 cm and comfortable viewing distance of 25 cm , the minimum separation between the two objects that human eye can resolve at 500 nm wavelength is nearly

Accepted Answer

$$ \begin{aligned} 	ext { R.P. } & =\frac{1.22 \lambda}{2 \mathrm{n} \sin 	heta}=\frac{1.22 	imes\left(500 	imes 10^{-9} \mathrm{~m}ight)}{2 	imes 1 	imes\left(\frac{0.25}{25}ight)} \ & =3.05 	imes 10^{-5} \mathrm{~m} \approx 30 \mu \mathrm{~m} \end{aligned} $$

Answer

$330 \mu \mathrm{~m}$

Answer

$30 \mu \mathrm{~m}$

Answer

$1 \mu \mathrm{~m}$

Answer

$100 \mu \mathrm{~m}$

Waves Optics

Assuming human pupil to have radius of 0.25 cm and comfortable viewing distance of 25 cm , the minimum separation between the two objects that human eye can resolve at 500 nm wavelength is nearly

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