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प्रश्न
Round up the following upto three significant figures:
2808
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उत्तर
2810
संबंधित प्रश्न
How many significant figures are present in the 5005?
How many significant figures should be present in the answer of the following calculation?
5 × 5.364
You are given a thread and a metre scale. How will you estimate the diameter of the thread?
The mean diameter of a thin brass rod is to be measured by vernier callipers. Why is a set of 100 measurements of the diameter expected to yield a more reliable estimate than a set of 5 measurements only?
The mass of a box measured by a grocer’s balance is 2.300 kg. Two gold pieces of masses 20.15 g and 20.17 g are added to the box. What is
- What is the total mass of the box?
- What is the difference in the masses of the pieces to correct significant figures?
State the number of significant figures in the following:
0.007 m2
State the number of significant figures in the following:
0.2370 g cm–3
State the number of significant figures in the following:
6.032 N m–2
Describe what is meant by significant figures.
Solve the numerical example.
A large ball 2 m in radius is made up of a rope of square cross-section with edge length 4 mm. Neglecting the air gaps in the ball, what is the total length of the rope to the nearest order of magnitude?
Solve the numerical example.
Nuclear radius R has a dependence on the mass number (A) as R =1.3 × 10-16 A1/3 m. For a nucleus of mass number A = 125, obtain the order of magnitude of R expressed in the meter.
Answer the following question.
Describe what is meant by order of magnitude.
Write the rules for determining significant figures.
The mass and volume of a body are 4.237 g and 2.5 cm3, respectively. The density of the material of the body in correct significant figures is ______.
Why do we have different units for the same physical quantity?
How many significant figures are present in the measurement 2007 grams?
Which of the following measurements contains exactly two significant figures?
The radius of Earth is written as 0.64 × 10⁷ m in scientific notation. What is its order of magnitude?
