हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान कक्षा ११

How many significant figures are present in the 2.0034? - Chemistry

Advertisements
Advertisements

प्रश्न

How many significant figures are present in the 2.0034?

एक पंक्ति में उत्तर
Advertisements

उत्तर

2.0034 - There are 5 significant figures.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

Round up the following upto three significant figures:

34.216


How many significant figures should be present in the answer of the following calculation?

5 × 5.364


A student measures the thickness of a human hair by looking at it through a microscope of magnification 100. He makes 20 observations and finds that the average width of the hair in the field of view of the microscope is 3.5 mm. What is the estimate on the thickness of hair?


You are given a thread and a metre scale. How will you estimate the diameter of the thread?


A man walking briskly in rain with speed must slant his umbrella forward making an angle θ with the vertical. A student derives the following relation between θ and v: tan θ = v and checks that the relation has a correct limit: as v →0, θ → 0, as expected. (We are assuming there is no strong wind and that the rain falls vertically for a stationary man). Do you think this relation can be correct? If not, guess the correct relation.


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).


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.


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


State the number of significant figures in the following:

0.0006032 m2


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?


Write a short note on the following.

Rounding - off


The sum of the numbers 436.32, 227.2 and 0.301 in appropriate significant figures is ______.


Calculate the length of the arc of a circle of radius 31.0 cm which subtends an angle of `pi/6` at the centre.


Significant figures in a measurement include which of the following?


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?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×