Exploration : Entering the World of Secondary Science — Important Questions
CBSE · Class 9 · Science
55 important questions from Exploration : Entering the World of Secondary Science for CBSE Class 9 Science, with answers.
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Important Questions from Exploration : Entering the World of Secondary Science
Why are some details deliberately ignored while building a scientific model?
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To keep the model simple enough for the question being studied
Ignoring some details is purposeful. It helps keep the model simple while still allowing a useful answer to be found.
Which quantity is represented by the symbol c in science?
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Speed of light
The symbol c is used for the speed of light.
What is the exact defined value of the speed of light?
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299792458 m/s
The speed of light is defined exactly as 299792458 m/s.
The symbol c for the speed of light comes from which Latin word?
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celeritas
The symbol c comes from the Latin word celeritas, meaning speed.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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