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प्रश्न
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
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उत्तर
As light rays emerge from a glass prism into the air, they are refracted away from the normal.
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संबंधित प्रश्न
When a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again? Explain your answer.
Describe how you could demonstrate that white light is composed of a number of colours.
Which is refracted most by a prism : red light or violet light? Explain why?
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
The property of splitting of white light into its seven constituent colours is known as
Which is optically denser: water or air? Give reason
The diagram below shows the path taken by a narrow beam of yellow monochromatic light passing through an equiangular glass prism. If the yellow light is replaced by a narrow beam of white light incident at the same angle, draw another diagram to show the passage of white light through the prism and label it to show the effect of prism on the white light.
In an experiment to trace the path of a ray of light through a triangular glass prism, a student would observe that the emergent ray
(a) is parallel to the incident ray.
(b) is along the same direction of incident ray.
(c) gets deviated and bends towards the thinner part of the prism.
(d) gets deviated and bends towards the thicker part (base) of the prism.
Draw a labeled ray diagram to illustrate the dispersion of a narrow beam of white light when it passes through a glass prism.
If a monochromatic beam of light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?
Which characteristic property of light is responsible for the blue colour of the sky?
State two properties of ultra-violet radiations which differ from visible light.
Write an Explanation.
Critical angle
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.
The splitting of white light in to seven colors is called ______.
The splitting of white light into its component colours is called ____________.
Why do we see a rainbow in the sky only after rainfall?
In dispersion, the color of light that will bend more is ______.
The dispersive powers of flint glass and crown glass are 0.053 and 0.034, respectively and their mean refractive indices are 1.68 and 1.53 for white light. Calculate the angle of the flint glass prism required to form an achromatic combination with a crown glass prism of refracting angle 4°:
