Question

When white light enters a glass prism from air, the angle of deviation is least for
(a) blue light
(b) yellow light
(c) violet light
(d) red light

Answer 1

Answer:

For red light.

Since wavelength is maximum

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Answer 2

When white light enters a glass prism from air, the angle of deviation is least for  red light.

Explanation:

• The white light consists of seven colours in which the voilet colour has least wavelength and red colour has maximum wavelength.
• When white light strikes at the first face of prism, the angle of deviation for red colour is least and that for violet colour is maximum.
• 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.
• When light passes through a prism the light bends.
• As a result, the different colors that make up white light become separated.
• This happens because each color has a particular wavelength and each wavelength bends at a different angle.

To Learn More...

1.White light is incident on the interface of glass and air.If green light is just totally internal reflected then the emerging ray in air contains .....

a)yellow,orange,red.

b)violet,indigo,blue

c)all colours

d)only green

https://brainly.in/question/111474

2.A)A beam of white light splits into component colours when it passes through a prism. Name the phenomenon and give its reason.

b)list the colours into which it splits on emergence from prism in increasing order of angle of deviation .

https://brainly.in/question/85580