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प्रश्न
Round up the following upto three significant figures:
0.04597
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उत्तर
0.0460
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संबंधित प्रश्न
How many significant figures are present in the 0.0025?
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:
10.4107
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).
Just as precise measurements are necessary in science, it is equally important to be able to make rough estimates of quantities using rudimentary ideas and common observations. Think of ways by which you can estimate the following (where an estimate is difficult to obtain, try to get an upper bound on the quantity):-
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Describe what is meant by significant figures.
Write the rules for determining significant figures.
Write a short note on the following.
Rounding - off
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.
Taking into account of the significant figures, what is the value of 9.99 m – 0.0099 m?
The sum of the numbers 436.32, 227.2 and 0.301 in appropriate 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 ______.
Why do we have different units for the same physical quantity?
Calculate the length of the arc of a circle of radius 31.0 cm which subtends an angle of `pi/6` at the centre.
Using the rules for significant figures, the correct answer for the expression `(0.02858 xx 0.112)/(0.5702)` will be ______.
How many significant figures are present in the measurement 2007 grams?
How many significant figures are there in the number 0.001405?
A length L is measured as 125 m, which is also written as 12500 cm and 125000 mm. How many significant figures does this measurement have?
