Estimate the distance for which ray optics a good approximation for an aperture of 4 mm and the wavelength is 400 nm? Estimate the distance for which ray optics a good approximation for an aperture of 4 mm and the wavelength is 400 nm? September 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related