Advertisements
Advertisements
Question
State the number of significant figures in the following:
6.320 J
Solution
6.320 J has four significant figures.
Explanation:
The digits 6, 3, and 2 are significant as they are non-zero, and the trailing zero after the decimal point is also significant because it shows precision in the measurement, indicating that the value is accurate to the thousandth place. This helps communicate the exactness of the quantity measured.
APPEARS IN
RELATED QUESTIONS
How many significant figures are present in the 2.0034?
How many significant figures should be present in the answer of the following calculation:-
`(0.02856 xx 298.15 xx 0.112)/0.5785`
The relative density of lead is 11.3. Its density is ______ g cm–3or ______ kg m–3.
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?
A LASER is a source of very intense, monochromatic, and unidirectional beam of light. These properties of a laser light can be exploited to measure long distances. The distance of the Moon from the Earth has been already determined very precisely using a laser as a source of light. A laser light beamed at the Moon takes 2.56 s to return after reflection at the Moon’s surface. How much is the radius of the lunar orbit around the Earth?
A SONAR (sound navigation and ranging) uses ultrasonic waves to detect and locate objects under water. In a submarine equipped with a SONAR the time delay between generation of a probe wave and the reception of its echo after reflection from an enemy submarine is found to be 77.0 s. What is the distance of the enemy submarine? (Speed of sound in water = 1450 m s–1).
State the number of significant figures in the following:
0.007 m2
Answer the following question.
Describe what is meant by order of magnitude.
Which of the following has the highest number of significant figures?
Assertion (A): Significant figures for 0.200 is 3 where as for 200 it is 1.
Reason (R): Zero at the end or right of a number are significant provided they are not on the right side of the decimal point.