The number of significant figures in the numbers $$25.12,$$ $$2009,$$ $$4.156$$ and $$1.217\times 10^{-4}$$ is:

 1 $$1$$ 2 $$2$$ 3 $$3$$ 4 $$4$$
Subtopic: Â Significant Figures |
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In which of the following, the number of significant figures is different from that in the others?

 1 $$2.303~\text{kg}$$ 2 $$12.23~\text{m}$$ 3 $$0.002\times10^{5}~\text{m}$$ 4 $$2.001\times10^{-3}~\text{kg}$$
Subtopic: Â Significant Figures |
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The mass and volume of a body are $$4.237~\text{grams}$$ and $$2.5~\text{cm}^3$$, respectively. The density of the material of the body in correct significant figures will be:
1. $$1.6048~\text{grams cm}^{-3}$$
2. $$1.69~\text{grams cm}^{-3}$$
3. $$1.7~\text{grams cm}^{-3}$$
4. $$1.695~\text{grams cm}^{-3}$$

Subtopic: Â Significant Figures |
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Which of the following measurements is the most precise?

1. 5.00 mm

2. 5.00 cm

3. 5.00 m

4. 5.00 km

Subtopic: Â Significant Figures |
Â 78%
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If $$97.52$$ is divided by $$2.54$$, the correct result in terms of significant figures is:

 1 $$38.4$$ 2 $$38.3937$$ 3 $$38.394$$ 4 $$38.39$$
Subtopic: Â Significant Figures |
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A thin wire has a length of $$21.7~\text{cm}$$ and a radius of $$0.46~\text{mm}$$. The volume of the wire to correct significant figures is:

 1 $$0.15~ \text{cm}^3$$ 2 $$0.1443~ \text{cm}^3$$ 3 $$0.14~ \text{cm}^3$$ 4 $$0.144 ~\text{cm}^3$$
Subtopic: Â Significant Figures |
Â 64%
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The decimal equivalent of $$\frac{1}{20}$$ up to three significant figures is:

 1 $$0.0500$$ 2 $$0.05000$$ 3 $$0.0050$$ 4 $$5.0 \times 10^{-2}$$
Subtopic: Â Significant Figures |
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Taking into account the significant figures, what is the value of $$(9.99~\text{m}-0.0099~\text{m})$$?
 1 $$9.98$$ m 2 $$9.980$$ m 3 $$9.9$$ m 4 $$9.9801$$ m
Subtopic: Â Significant Figures |
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The numbers $$2.745$$ and $$2.735$$ on rounding off to $$3$$ significant figures will give respectively,

 1 $$2.75$$  and $$2.74$$ 2 $$2.74$$  and $$2.73$$ 3 $$2.75$$ and $$2.73$$ 4 $$2.74$$ and $$2.74$$
Subtopic: Â Significant Figures |
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