The average binding energy per nucleon of most nuclei || The minimum energy required for electron-positron pair production is || The efficiency of a Carnot engine is 25%. If the temperature of its source is 327 0 C, then the temperature of the sink must be-

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1. The average binding energy per nucleon of most nuclei is -

a. 10^-12 eV

b. 10^-12 MeV

c. 10^-12 BeV

d. 10^-12 J

2. The minimum energy required for electron-positron pair production is -

a. 0.5 MeV

b. 1.0 MeV

c. 0.5 keV

d. 1.5 MeV

3. The efficiency of a Carnot engine is 25%. If the temperature of its source is 327 ⁰ C, then the temperature of the sink must be -

a. 82 ⁰ C

b. 127 ⁰ C

c. 177 ⁰ C

d. 227 ⁰ C

The Solution is here-

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