Same chapter3 marksDifficulty: Medium
State two limitations of dimensional analysis.
Physical World and Measurement
3 marksDifficulty: Medium
How many significant figures are there in 0.00420, 1.030 and 6.023 × 1023?
Original Khojo Papers practice question — not from a past board paper.
Answer
Three, four and four respectively.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Leading zeros are not significant, trailing zeros after a decimal point are, and in scientific notation only the digits in the mantissa count.
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