The ratio of resolving powers of an optical microscope for two wavelengths λ1 = 4000A˚ and λ2 = 6000A˚ is The ratio of resolving powers of an optical microscope for two wavelengths λ1 = 4000A˚ and λ2 = 6000A˚ is August 20, 2020 Category: Chapter 32 - Ray Optics , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related Wavelength of light used in an optical instrument are λ1 = 4000 A∘ and λ2 = 5000 A∘ then ratio of their respective resolving powers (corresponding to λ1 and λ2 ) isLights of wavelengths λ1=4500Å, λ2=6000Å are sent through a double slit arrangement simultaneously. ThenIf λ1,λ2 and λ3 are the wavelengths of the waves giving resonance with the fundamental, first and second overtones respectively of a closed organ pipe. Then the ratio of wavelengths λ1:λ2:λ3 is