Question

explain depression of white light by glass prism.....​

Answer 1

Answer:

when white light pass from the base of the prism get splitted into its components colour and after discussion the base and buses from base travel from rarer medium to denser and bend towards the normal and as it passes from denser medium to rarer bents away from the normal that is what's the base and colour we get her VIBGYOR

Answer 2

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‘Dispersion of Light’ can be defined as the splitting of white light when it passes through a glass prism into its constituent spectrum of colors (i.e. violet, indigo, blue, green, yellow, orange and red). Dispersion figuratively means ‘distribution’ and hence that’s exactly what is happening in the picture above. The white light splits into its constituent colors at various frequencies and various angles.

figure of prism is shown in the attachment.....

A prism is a transparent refracting device bounded by five plane surfaces inclined at some angles. It bends the light two times and emergent ray is at an angle to the incident ray.

Dispersion of White Light By a Prism.....

figure of prism is shown in the attachment.....

Refraction is the bending in the path of the light when it travels from one medium to the another. The degree at which refraction will occur depends on the wavelength of the light. Each light wave has a different wavelength and will therefore deviate differently. White light is composed of light of different wavelengths (colors) i.e. violet, indigo, blue, green, yellow and red. Red has the highest wavelength and violet the lowest.

Wavelength is inversely proportional to the deviation in the path of the light. Red light suffers the least amount of deviation and violet the most. When a white light is made to pass through a prism, formation of a spectrum of seven colors occurs showing white light is a combination of seven separate colors.

Prism only acts as a medium for the dispersion of light made of the seven colors. Refraction occurs when the light falls on the prism. The wavelength and frequency of these deviated colors is different, they deviate differently at different angles due to the velocity difference of the prism. The color red therefore deviates the least since it has maximum wavelength and color violet deviates the most since it has the least wavelength.

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