refraction of light

Light travels from a region of heavy flint glass into a region of vacuum, making an angle of incidence of 50 degrees. Which of the following best describes the path of the light as it moves into... more


Physics Diffraction

The Hubble Space Telescope has a diameter of 2.4 m.What is the angular limit of resolution due to diffraction when a wavelength of 790 nm is viewed? 


Are sound waves examples of longitudal waves?

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