(a) Draw a diagram to show how a converging lens focusses parallel rays of light?
(b) How would you alter the above diagram to show how a converging lens can produce a beam of parallel rays of light.
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An interhalogen compound is a molecule which contains two or more different halogen atoms and no atoms of elements from any other group. The value of "n" in Interhalogens is always odd, because they've their odd valence shell electronics configuration. Most interhalogen compounds known are binary.
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