हिंदी

Solve the following question: Round off the following quantity to three significant figures: 458 × 102 cm

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प्रश्न

Solve the following question:

Round off the following quantity to three significant figures:

458 × 102 cm

संख्यात्मक
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उत्तर

4.58 × 104 cm

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अध्याय 2: Introduction to Analytical Chemistry - Exercises [पृष्ठ २४]

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बालभारती Chemistry [English] Standard 11 Maharashtra State Board
अध्याय 2 Introduction to Analytical Chemistry
Exercises | Q 3. (C)(b) | पृष्ठ २४

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:

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:

0.039 m


Solve the following problem:

Express the following quantity in exponential terms.

0.0003498


Solve the following problem:

Give the number of significant figures for the following.

1.89 × 10-4


Solve the following problem:

Express the given quantity with or without exponents as the case may be.

0.002030


Solve the following problem:

Write the following in exponential notation:

0.000098


Solve the following problem:

Write the following in exponential notation:

0.00461


Solve the following problem:

Perform the following operation:

3.971 × 107 + 1.98 × 104


Solve the following problem:

Perform the following operation:

1.05 × 10−4 − 9.7 × 10−5


Solve the following problem:

Perform the following operation:

4.11 × 10−3 + 8.1 ×10−4


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Define : Least count


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Define: Least count


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