When light sources from multiple sources overlap, the area where all the shadows overlap is called

A diffraction grating that has 4000 lines per centimetres is illuminated at normal incidence with white light ( wavelength range of 400 nm to 700 nm). How many orders of spectra can one observe in the transmitted light?

Pinhole cameras only work if the aperture is LARGE

The period of a wave is

The figure shows the diffraction pattern by a single slit which has a slit size of 0.017 mm and is placed 80 cm from the screen. The light used has a wavelength of 600 nm. what is the width of the central bright band?

A diffraction grating that has 2000 slits per centimetre is used to measure the wavelengths emitted by hydrogen gas. At what angle in the first order spectrum would you expect to find the violet line that has a wavelength of 434 nm?

The figure shows a monochromatic light of wavelength λ\lambdaλ being incident onto a single slit. The slit size is a. What is the value of d in terms of λ\lambdaλ ?

Total internal reflection only occurs when light tries to travels from a medium with a _____ index to ____ index

You observe two very closely-spaced sources of white light through a circular opening using various filters. Which color filter is most likely in resolving the images on your retinas as coming from two distinct sources?

Dimensions for a point source are important.

Green light of wavelength 500 nm is incident normally on a grating, and the second order is diffracted 32.0°32.0\degree32.0° from the normal. How many lines per cm are marked on the grating?

When light travels from a higher index (water) to a lower index (air), light will bend...