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Solve Efficiency Multiple Choice Questions (MCQ), efficiency quiz answers PDF worksheet, grade 9 physics practice test for online school programs. Learn work and energy Multiple Choice Questions and Answers (MCQs), "Efficiency" quiz questions and answers for school certificate. Learn physics practice questions, forms of energy, kinetic energy, potential energy, efficiency test prep for free online classes.

"The efficiency of a solar cell is" Multiple Choice Questions (MCQ) on basic operations of logical gates with choices 0.8, 0.35, 0.55, and 0.03 for school certificate. Practice work and energy quiz questions for online certificate programs for online school courses.

MCQ: The efficiency of a solar cell is

1. 0.8
2. 0.35
3. 0.55
4. 0.03

D

MCQ: (a required form of output/total input energy)×100 is equal to

1. % power
2. % efficiency
3. % stress
4. % strain

B

MCQ: The efficiency of the cyclist when he does 12 J of useful work from every 100 J of food energy he takes is

1. 0.13
2. 0.14
3. 0.12
4. 0.15

C

MCQ: An body builder does 15 Joules of useful work from every 60 Joules of food energy which he takes. His efficiency will be

1. 0.15
2. 0.25
3. 0.3
4. 0.35

B

MCQ: If some energy given to a system, then energy in the required form obtained is always

1. less than the given energy
2. equal to the given energy
3. greater than the given energy
4. none of above

A