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प्रश्न
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संबंधित प्रश्न
Describe how you could demonstrate that white light is composed of a number of colours.
What is a rainbow? What are the two conditions necessary for the formation of a rainbow in the sky?
A ray of white light falls on a prism. Draw a ray diagram to show that the prism disperses the white light.
In the spectrum of white light by a prism, the colour at the extreme end opposite to the base of prism is ______.
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.
Refer to fig
(i) Name the lens L.
(ii) What are the points O, O' called?
(iii) Complete the diagram to form the image of the object AB.
(iv) Write three characteristics of the image.
Write three conditions necessary to obtain a pure spectrum on a screen. Name the instrument in which the conditions stated by you are fulfilled.
Draw a neat and labelled diagram for dispersion of light.
In the following diagram showing dispersion of white light by a glass prism, the colours 'P' and 'Q’ respectively are:
State the colour which bends:
- The most.
- The least while passing through a glass prism.
