- 1(current)
Q. No.The sum of the numbers 436.32,227.2,436.32,227.2, and 0.3010.301 in the appropriate significant figures is:
| 1. | 663.821663.821 | 2. | 664664 |
| 3. | 663.8663.8 | 4. | 663.82663.82 |
1. 14×10214×102
2. 138×101138×101
3. 13821382
4. 1382.51382.5
The radius of a circle is stated as 2.122.12 cm. Its area should be written as:
| 1. | 14 cm214 cm2 | 2. | 14.1 cm214.1 cm2 |
| 3. | 14.11 cm214.11 cm2 | 4. | 14.1124 cm214.1124 cm2 |
The mass and volume of a body are 4.237 g 4.237 g and 2.5 cm3,2.5 cm3, respectively. The density of the material of the body in correct significant figures will be:
1. 1.6048 g cm−31.6048 g cm−3
2. 1.69 g cm−3
3. 1.7 g cm−3
4. 1.695 g cm−3
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 |
Each side of a cube is measured to be 7.203 m. What are the total surface area and the volume respectively of the cube to appropriate significant figures?
| 1. | 373.7 m2 and 311.3 m3 |
| 2. | 311.3 m2 and 373.7 m3 |
| 3. | 311.2992 m2 and 373.7147 m3 |
| 4. | 373.7147 m2 and 311.2992 m3 |
1. 9.98 m
2. 9.980 m
3. 9.9 m
4. 9.9801 m
In which of the following, the number of significant figures is different from that in the others?
| 1. | 2.303 kg | 2. | 12.23 m |
| 3. | 0.002×105 m | 4. | 2.001×10−3 kg |
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 |
A thin wire has a length of 21.7 cm and a radius of 0.46 mm. The volume of the wire to correct significant figures is:
| 1. | 0.15 cm3 | 2. | 0.1443 cm3 |
| 3. | 0.14 cm3 | 4. | 0.144 cm3 |
- 1(current)
Q. No.
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