MCQ practice · SSC Physics Board questions · Chapter 4: Work, Power and Energy
Using which do the sun or the stars produce their energy?
Think it through first, then pick an option.
- a nuclear fusion
- b nuclear fission
- c geothermal
- d light
Answer and explanation
Correct answer: a nuclear fusion
The book says the sun and the stars use nuclear fusion. Fission is the splitting of uranium, geothermal is heat from inside the earth, and light is a result, not the process.
Why the other options are wrong
- b nuclear fission: This is not the answer: The book says the sun and the stars use nuclear fusion. Fission is the splitting of uranium, geothermal is heat from inside the earth, and light is a result, not the process.
- c geothermal: This is not the answer: The book says the sun and the stars use nuclear fusion. Fission is the splitting of uranium, geothermal is heat from inside the earth, and light is a result, not the process.
- d light: This is not the answer: The book says the sun and the stars use nuclear fusion. Fission is the splitting of uranium, geothermal is heat from inside the earth, and light is a result, not the process.
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