Physics
JAMB 1983
Which of the following arrangements in the sequence shown can be used to obtain a pure spectrum of white light?
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A.
source, slit, converging lens, prism, converging lens, screen.
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B.
source, slit, diverging lens, prism, diverging lens, screen.
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C.
source, converging lens, prism, diverging lens, screen.
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D.
source, slit, prism, diverging lens, converging lens, screen.
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E.
source, slit, prism, diverging lens, sreen.
Correct Answer: Option A
Explanation
Dispersion is the separation of white light into its component colours.
The correct sequence of arrangement that can be used to obtain pure spectrum is as follows; source, slit, converging lens, prism, converging lens, screen.
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