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(a) What is spectrum ? What is the name of glass shape used to produce a spectrum ? (b) How many colours are there in a full spectrum of white light ? Write the various colours of spectrum in the order. starting with red. |
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Answer» (a) What is spectrum ? What is the name of glass shape used to produce a spectrum ? (b) How many colours are there in a full spectrum of white light ? Write the various colours of spectrum in the order. starting with red. |
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