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In the formation of spectrum of white light by a prism:
which colour is deviated least?
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In the formation of spectrum of white light by a prism:
which colour is deviated most?
Concept: undefined >> undefined
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Fill in the blank with suitable word:
When a ray of light enters a prism, it bends ................ the normal ; as it leaves the prism, it bends ................. the normal.
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What happens when a ray of ordinary light is passed through a triangular glass prism?
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What will happen if another similar glass prism is placed upside down behind the first prism?
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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.
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What is spectrum? What is the name of glass shape used to produce a spectrum?
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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.
State the colour seen (i) at X, and (ii) at Y.
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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?
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Draw a diagram to show how white light can be dispersed into a spectrum by using a glass prism. Mark the various colours of the spectrum.
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Make two diagrams to explain refraction and dispersion.
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Describe how you could demonstrate that white light is composed of a number of colours.
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How could you show that the colours of the spectrum combine to give white light?
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Which is refracted most by a prism : red light or violet light? Explain why?
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Draw a diagram to show the refraction of light through a glass prism. On this diagram, mark
(i) incident ray
(ii) emergent ray, and
(iii) angle of deviation.
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What is a rainbow? What are the two conditions necessary for the formation of a rainbow in the sky?
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What acts as tiny prisms in the formation of a rainbow?
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Name the process which is involved in the formation of a rainbow.
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What are the seven colours seen in a rainbow?
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A beam of white light is shone onto a glass prism. The light cannot be:
(a) deviated
(b) dispersed
(c) focused
(d) refracted
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