A research worker takes 100 observations...

A research worker takes `100` observations in an experiment . If he repeats the same experiment by taking `500` observation , how is the probable error affected?

Text Solution

Verified by Experts

Probable error reduces to `1//5` as the number of observations is made `5` times.

Topper's Solved these Questions

DIMENSIONS & MEASUREMENT
CENGAGE PHYSICS ENGLISH|Exercise Subjective|31 Videos
DIMENSIONS & MEASUREMENT
CENGAGE PHYSICS ENGLISH|Exercise Single Correct|93 Videos
DIMENSIONS & MEASUREMENT
CENGAGE PHYSICS ENGLISH|Exercise Exercise 1.2|6 Videos
CENTRE OF MASS
CENGAGE PHYSICS ENGLISH|Exercise INTEGER_TYPE|1 Videos
FLUID MECHANICS
CENGAGE PHYSICS ENGLISH|Exercise INTEGER_TYPE|1 Videos

Similar Questions

Explore conceptually related problems

A scientist performs an experiment in order to measure a certain physical quantity and takes 100 observations. He repeats the same experiment and takes 400 observations, by doing so

A scientist performs an experiment and takes 100 readings. He repeats the same experiment and now takes 500 readings, By doing this what is the advantage?

In the meter bridge experiment, balance point was observed at J with AJ=I. (i) The values of R and X were doubled and then interchanged. What would be the new position of balance point (ii) If the galvanometer and battery are interchanged at the balance position, how will the balance point get affected?

While traching the path of a ray of light passing through a rectangular glass slab a student tabulated his observations. If in his experiment for two readings he takes two values of angle ians 40^(@) and 50^(@) . What should be the correct values of anglee and angler in each case ?

A boy uses blue colour of light to find the refractive index of glass. He then repeats the experiment using red colour of light. Will the refractive index be the same or different in the two cases? Give a reason to support your answer.

It was observed in an experiment that the number of bacteria doubles evey hour. It was found that the number of bacteria twelve hours from the start of observation was 40960. After how many hours from the start of the experiment would the number of bacteria has been one-fourth the final number of bacteria?

If Young's double-slit experiment is performed under water, how would be observed interference pattern be affected ?

Stanley Miler had put the Oparin-Haldane theory to test in 1953 by creating in the laboratory, the probable conditions on the primitive earth. In the experiment simple aminoacids were synthesized from which of the following modures, as observed after eighteen days?

Stanley Miler had put the Oparin-Haldane theory to test in 1953 by creating in the faboratory, the probable conditions on the primitive earth. In the experiment simple aminoacids were synthesized from which of the following modures, as observed after eighteen days?

Water at 4^(@)C is filled to the brim of two beakers A and B of glass of negligible coefficient of expansion. A boy performed experiments by heating the beaker A and cooling the beaker B. He observes

CENGAGE PHYSICS ENGLISH-DIMENSIONS & MEASUREMENT-Exercise 1.3

Which of the following length measurements is most precise and why? ...
Text Solution
|
In a number without decimal , what is the significant of zeros on the ...
Text Solution
|
A research worker takes 100 observations in an experiment . If he repe...
Text Solution
|
Which quantity in a given formula should be measured most accurately W...
Text Solution
|
A body travels uniformly a distance of ( 13.8 +- 0.2) m in a time (4.0...
Text Solution
|
The error in the measurement of the radius of a sphere is 1%. Find the...
Text Solution
|
Given R(1) = 5.0 +- 0.2 Omega, and R(2) = 10.0 +- 0.1 Omega. What is t...
Text Solution
|
The value of resistance is 10.845 Omega and the current is 3.23 A . On...
Text Solution
|
The length of one rod is 2.53 cm and that of the other is 1.27 cm. The...
Text Solution
|
The pressure on a square plate is measured by measuring the force on t...
Text Solution
|
The density of a cube is measured by measuring its mass and the length...
Text Solution
|
The pressure on a square plate is measured by measuring the force on t...
Text Solution
|
The resistance R = V//i, where V = 100 +- 5 V and I = 10+- 0.2 A. What...
Text Solution
|
The length of a cylinder is measured with a meter rod having least cou...
Text Solution
|
In an experiment , the following observations were recorded: L = 2.8...
Text Solution
|
According to Joule's law of heating , heat produced H = I^(2) Rt, wher...
Text Solution
|
A physical quantity P is given by P = (A^(3) B^(1//2))/( C^(-4) D^(3//...
Text Solution
|