Units and Measurements — Important Questions
CBSE · Class 11 · Physics
147 important questions from Units and Measurements for CBSE Class 11 Physics, with answers. Part of the CBSE Class 11 Physics syllabus.
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Important Questions from Units and Measurements
Which system of units was widely used before the SI system?
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CGS System
The CGS system, using centimeter, gram, and second as base units, was widely used before the SI system.
What does the term 'significant figures' primarily indicate?
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Precision of measurement
Significant figures indicate the precision and reliability of a measured value.
In scientific notation, what range is the base number typically kept within?
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1 to 10
In scientific notation, the base number is typically kept between 1 and 10.
What is the dimension of length in dimensional analysis?
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[L]
In dimensional analysis, length is represented by the dimension [L].
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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
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