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प्रश्न
A ray of white light is passed through a glass prism and a spectrum is obtained on a screen.
- Name the seven colours of the spectrum in order.
- Do the colours have the same width in the spectrum?
- Which of the colour of the spectrum of white light deviates (i) the most, (ii) the least?
A spectrum is produced on a screen when a ray of white light travels through a glass prism. What are the seven colours of the spectrum (in order)? Do these colours of light have the same width in the spectrum? Name the colour of the spectrum that deviates the most and the least.
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उत्तर
- Violet, Indigo, Blue, Green, Yellow, Orange, and Red.
- No, different colours have different widths in the spectrum.
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- The violet colour deviates the most.
- The red colour deviates the least.
संबंधित प्रश्न
The colour of white light which suffers the maximum bending (or maximum refraction) on passing through a glass prism is:
(a) yellow
(b) orange
(c) red
(d) violet
Why do you not see a spectrum of colours when light passes through a flat pane of glass?
The splitting of white light into its constituent colours is called .............
A ray of white light falls on a prism. Draw a ray diagram to show that the prism disperses the white light.
Explain briefly, with the help of a neat labelled diagram, how white light gets dispersed by a prism. On which surface of a prism, there is both dispersion and deviation of light, and on which surface of the prism, there is only deviation of light ?
Complete the ray diagram given below to show the nature of light produced on the screen.
When we place a glass prism in the path of a narrow beam of white light a spectrum is obtained. What happens when a second identical prism is placed in an inverted position with respect to the first prism? Draw a labelled ray diagram to illustrate it.
The wavelengths of violet and red light are 4000 Å and 8000 Å respectively. Which of the two has the higher frequency?
What do you understand by spectrum? Name the seven prominent colours in order, as obtained in the spectrum of white light.
When sunlight passes through water droplets in the atmosphere it gets dispersed into its constituent colours forming a rainbow. A similar phenomenon is observed when white light passes through a prism.
Which colour will show the maximum angle of deviation and which colour will show the minimum angle of deviation?
