Estimate the distance for which ray optics is good approximation for an aperture of `4 mm` and wavelength `400 nm`.

Estimate the distance for which ray optics is good approximation for an aperature of 4 mm and wavelength 400 nm.

Estimate the distance for which ray optics is good approximation foran aperture of 4mm and wavelength 400 nm.

Estimate the distance for which ray optics is good approximately for an aperture of 2mm and wavelength 500 nm.

Estimate the distance for which ray optics is good approximately for an aperture of 2mm and wavelength 500 nm.

Calculate the distance for which ray optics is good aproximation for an aperture of 5 mm and wavelenght 500 nm.

Estimate the distance for which for which ray optics is good approximation for an aperture of 4 mm and wavelength 400 nm .