Advertisements
Advertisements
प्रश्न
State the number of significant figures in the following:
2.64 × 1024 kg
Advertisements
उत्तर
2.64 × 1024 kg has three significant figures.
Explanation:
Here, the power of 10 is irrelevant for the determination of significant figures. Hence, all digits, i.e., 2, 6, and 4 are significant figures.
APPEARS IN
संबंधित प्रश्न
How many significant figures are present in the 208?
How many significant figures are present in the 126,000?
How many significant figures are present in the 500.0?
Round up the following upto three significant figures:
34.216
Round up the following upto three significant figures:
2808
You are given a thread and a metre scale. How will you estimate the diameter of the thread?
The photograph of a house occupies an area of 1.75 cm2on a 35 mm slide. The slide is projected on to a screen, and the area of the house on the screen is 1.55 m2. What is the linear magnification of the projector-screen arrangement?
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 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).
It is a well known fact that during a total solar eclipse the disk of the moon almost completely covers the disk of the Sun. From this fact and from the information you can gather from examples 2.3 and 2.4, determine the approximate diameter of the moon.
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?
How many significant figures should be present in the answer of the following calculations?
`(2.5 xx 1.25 xx 3.5)/2.01`
The number of significant figures in 0.06900 is ______.
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 ______.
The length and breadth of a rectangular sheet are 16.2 cm and 10.1cm, respectively. The area of the sheet in appropriate significant figures and error is ______.
Using the rules for significant figures, the correct answer for the expression `(0.02858 xx 0.112)/(0.5702)` will be ______.
The radius of Earth is written as 0.64 × 10⁷ m in scientific notation. What is its order of magnitude?
The arithmetic mean of three measurements, 15.4 cm, 15.4 cm, and 15.5 cm, is 15.43 cm. How many significant figures does this result have?
