Question

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Which of the following statements is correct?

• A. Aeroplane is based on Newton’s laws of motion and steam engine on Bernoulli’s theorem
• B. Hydroelectric power is based on law of thermodynamics and rocket propulsion on Bernoulli’s theorem
• C. Computers are based on digital logic of electronic circuits, while electric generator on Faraday’s law of electromagnetic induction
• D. Nuclear reactor is based on law of thermodynamics and sonar on optical interference

Answer 1

Answer: (C)

Computers are based on digital logic of electronic circuits, while electric generator on Faraday’s law of electromagnetic induction

Answer 2

Aeroplane is based on Bernoulli’s theorem and steam engine on laws of thermodynamics.

Hence, option (1) is incorrect.

Hydroelectric power is based on conversion of gravitational potential energy into electrical energy.

Hence, options (2) is incorrect.

Computers are based on digital logic of electronic circuits while electric generator on Faraday’s law of electromagnetic inductions. Hence, option (3) is correct.

Nuclear reactor is based on controlled nuclear fission and sonar on reflection of ultrasonic waves. Hence, option (4) is incorrect.