Answer / satya

In IR We identified functional group of compound by using ir rays from [w] tongusten lamp.

In polarimeter we using na lamp.For plane polarised light

Answer / b.gangatharan

IR lamp is called as GLOBAR and it will produce only IR rays.but in polarimeter two different lamps are used.one is sodium lamp and it will produce D-LINE Rays at 589nm and another one is mercury lamp and it will produce mercury line rays at 546nm.
Thanks,
B.Gangatharan,
Caplin point labs,
Puducherry.

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