Conversion of heat energy to electrical energy can be achieved by the use of which of the following?

Options :
  1. Thermocouple
  2. Triode valve
  3. Photoelectric tube
  4. None of these
Answer and Explanation :-

Answer: Option 1

Explanation:

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As Henry Moore carvedor modelled his sculpture every day,he strove to surpass Donatello4. and failed, but woke the next morningelated for another try.
-Donald Hall