Question

the conical projection in ferry's blacbody is​

Answer 1

Answer:

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Explanation:

Fery's black body consists of a double walled hollow sphere having a small opening O on one side and a conical projection P just opposite to it (Figure). Its inner surface is coated with lamp black.

Answer 2

Answer:

Fery's black body consists of a double walled hollow sphere having a small opening O on one side and a conical projection P just opposite to it (Figure). Its inner surface is coated with lamp black.