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प्रश्न
Observe the given figure and write appropriate phenomenon of light in the box.
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उत्तर
Dispersion of light
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संबंधित प्रश्न
Draw a ray diagram to explain the term angle of deviation.
(i) A ray of white light breaks up into its components while passing through a glass prism. Draw a ray diagram to show the path of rays.
(ii) Mark the least deviated colour in your diagram
(iii) Why do different coloured rays deviate differently in a prism?
As light rays pass from air into a glass prism, are they refracted towards or away from the normal?
In the figure given alongside, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum YX on the screen.
Why do different colours of white light bend through different angles with respect to the incident beam of light?
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
The splitting up of white light into seven colours on passing through a glass prism is called:
(a) refraction
(b) deflection
(c) dispersion
(d) scattering
Which of the following colour of white light has the least wavelength?
(a) red
(b) orange
(c) violet
(d) blue
Why do you not see a spectrum of colours when light passes through a flat pane of glass?
In the following diagram, the correctly marked angles are
(A) All
(B) Only ∠i and ∠A
(C) ∠i, ∠r and ∠A
(D) ∠i, ∠A and ∠D
If white light is used in same way what change is expected in the emergent beam?
Write three conditions necessary to obtain a pure spectrum on a screen. Name the instrument in which the conditions stated by you are fulfilled.
Write the range of wavelength of the ultraviolet spectrum.
Rainbow is a beautiful natural phenomenon. It is the combined effect of a natural three processes together produced by light. Write it into the circle.
Say TRUE or FALSE
Rainbow is formed by dispersion of which light by water drops
When white light enters a glass prism from the air, the angle of deviation is least for ____________.
The phenomena of light involved in the formation of rainbow are ______.
The splitting of white light into its component colours is called ____________.
Which one of the following is involved for the formation of rainbow in the sky?
