Question

3. (1 point) You have 2 filters, red and orange. You shine white light through the red filter and measure the wavelengths it passes (675 - 700 nm). You then do the same for the orange filter and find that it passes 650 - 680 nm. If you shine white light through both filters, which wavelengths, if any, will be passed by the combination?

Answer 1

3) Band pass fillers 700 nm red allows I between 675 and Blocks rest (400-675) & 700+ allows X 650 680 nm orange and Blocks rest (400-650) 4 680+ so a combination of both filters (a cascade ) will allow only ir 675 to 680nm and block everything else.