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प्रश्न
What do you mean by significant figures?
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उत्तर
The significant figures in measurement or result are the number of digits known with certainty plus one uncertain digit.
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संबंधित प्रश्न
Choose the correct option:
The number of significant figures in 1.50 × 104 g is __________
Choose the correct option:
In Avogadro’s constant 6.022 × 1023 mol-1, the number of significant figures is ________
State the rules for deciding significant figures.
Distinguish between accuracy and precision.
Why there is a need of rounding off figures during calculation?
Solve the following question:
Round off the following quantity to two significant figures:
25.55 mL
Solve the following question:
Round off the following quantity to two significant figures:
199 g
Solve the following question:
Round off the following quantity to three significant figures:
1.43 cm3
Solve the following question:
Round off the following quantity to three significant figures:
643 cm2
Solve the following question:
Round off the following quantity to three significant figures:
6.398 × 10-3 km
Solve the following question:
Round off the following quantity to three significant figures:
42,150
Solve the following question:
Express the following sum to the appropriate number of significant figures:
319.5 g − 20460 g − 0.0639 g − 45.642 g − 4.173 g
Solve the following problem:
Express the following quantity in exponential terms.
0.0003498
Solve the following problem:
Express the following quantity in exponential terms.
235.4678
Solve the following problem:
Express the following quantity in exponential terms.
1569.00
Solve the following problem:
Give the number of significant figures for the following.
0.002030
Solve the following problem:
Give the number of significant figures for the following.
1.23 × 104
Solve the following problem:
Express the given quantity with or without exponents as the case may be.
0.002030
Solve the following problem:
Express the given quantity with or without exponents as the case may be.
1.89 × 10-4
Solve the following problem:
Write the following in exponential notation:
3,672,199
Solve the following problem:
Write the following in exponential notation:
0.000098
Solve the following problem:
Write the following in exponential notation:
198.75
Solve the following problem:
Perform the following operation:
1.05 × 10−4 − 9.7 × 10−5
Solve the following problem:
Perform the following operation:
2.12 × 106 − 3.5 × 105
Define Least count.
Define : Least count
