The source of ultraviolet light is: (a) electric bulb

+2 votes

asked Apr 5, 2019 in Class 10 by kratos

The source of ultraviolet light is:

(a) electric bulb

(b) red hot iron ball

(c) sodium vapour lamp

(d) carbon arc-lamp

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+3 votes

answered Aug 5, 2020 by kratos

Best answer

Carbon arc-lamp

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