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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
A student traces the path of a ray of light through a triangular glass prism for different values of angle of incidence. On analyzing the ray diagrams, which one of the following conclusions is he likely to draw?
(A) The emergent ray is parallel to the incident ray.
(B) The emergent ray bends at an angle to the direction of the incident ray.
(C) The emergent ray and the refracted ray are at right angles to each other.
(D) The emergent ray is perpendicular to the incident ray.
A student is observing a diagram showing the path of a ray of light passing through a glass prism. He would find that for all angles of incidence the ray of light bends:
State the cause of dispersion of white light
In the formation of spectrum of white light by a prism:
which colour is deviated most?
What is spectrum? What is the name of glass shape used to produce a spectrum?
Describe how you could demonstrate that white light is composed of a number of colours.
How could you show that the colours of the spectrum combine to give white light?
A beam of white light is shone onto a glass prism. The light cannot be:
(a) deviated
(b) dispersed
(c) focused
(d) refracted
A beam of white light falls on a glass prism. The colour of light which undergoes the least bending on passing through the glass prism is:
(a) violet
(b) red
(c) green
(d) blue
Which of the following colour of white light is least deviated by the prism?
(a) green
(b) violet
(c) indigo
(d) yellow
The coloured light having the maximum speed in glass prism is:
(a) blue
(b) green
(c) violet
(d) yellow
Which of the following colour of white light has the least wavelength?
(a) red
(b) orange
(c) violet
(d) blue
A glass prism is able to produce the spectrum when white light passes through it, but a glass slab doesn’t produce any spectrum. Explain why it is so.
An object AB is placed in front of a convex lens as shown in fig. 4. Complete the ray diagram and obtain the image formed and state the nature of the image.
A wave has wavelength 50Å of name the wave.
How can the presence of ultraviolet radiation be detected?
In the figure, a beam of light consisting of three colours blue, red, and yellow is incident on a prism and on a rectangular glass block respectively. Complete the diagram by drawings of the refracted and emergent rays.
When white light enters a glass prism from the air, the angle of deviation is least for ____________.
In dispersion, the color of light that will bend more is ______.
