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Judoliam
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What happens to the brightness of a ray of white light as it passes through a prism?
abbas_majidi said:Each white ray contain the continuance spectrum with its profile. After it is passed through prism the result is a spectrum from red to violet. This spectrum has a curve, intensity against wave length which is same to white ray profile.
abbas_majidi said:Yes. good point. Glass absorption also has influence to result, in here it's negligible because in visible region glass have no important absorption.
A prism is a transparent optical element with flat faces and angles that refract light, splitting it into its component colors.
A prism disperses white light into its component colors, making the overall light appear less bright due to the separation of the wavelengths.
The separation of colors in a prism is caused by the different wavelengths of light being refracted at different angles as they pass through the prism.
No, the overall brightness of white light cannot be increased by passing through a prism because the light is being dispersed into its component colors rather than being amplified.
The brightness of a ray of white light can be measured using a photometer or a spectrometer to determine the intensity of each color component and then adding them together to determine the overall brightness.