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Test: Measurement & Error Analysis - NEET MCQ


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10 Questions MCQ Test Physics Class 11 - Test: Measurement & Error Analysis

Test: Measurement & Error Analysis for NEET 2024 is part of Physics Class 11 preparation. The Test: Measurement & Error Analysis questions and answers have been prepared according to the NEET exam syllabus.The Test: Measurement & Error Analysis MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Measurement & Error Analysis below.
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Test: Measurement & Error Analysis - Question 1

The accuracy in the measurement of time for 20 oscillations of pendulum for the following measurements, t1 = 39.6 s, t2 = 39.9 s and t3 = 39.5 s is:

Detailed Solution for Test: Measurement & Error Analysis - Question 1

According to the problem time for 20 oscillations of a pendulum 

t​= 3 9.6s,  t​= 39.9s,  t3​ =3 9.5s

It is quite obvious from these observations that the least count by the water is 0.1s. As measurements have only one decimal place.

► Precision in measurement = least count of measuring instrument = 0.1s

► Precision in 20 oscillations = 0.1

Therefore, Precision in 1 oscillation = 0.1/ 20​= 0.005.

Test: Measurement & Error Analysis - Question 2

Which of the following is caused by careless handling?

Detailed Solution for Test: Measurement & Error Analysis - Question 2

Gross errors are mostly due to lack of knowledge, judgment and care on the part of experiment. That is Gross error is caused by careless handling.

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Test: Measurement & Error Analysis - Question 3

A student measures the distance covered and time taken by a body under free fall which was initially at rest. He uses this data for estimating g, the acceleration due to gravity. If the maximum percentage error in measurement  of the distance and the time are e1 and erespectively, then the maximum possible percentage error in the estimation of g is:

Detailed Solution for Test: Measurement & Error Analysis - Question 3

From the releation

h= 1/2gt ⇒ g = 2h/t2

Taking natural logarithms on both sides, we get

ln (g)  = ln (h) - 2ln (t) + ln (2)

Differentiating

for maximum permissible errors , we add both the errors . so

Test: Measurement & Error Analysis - Question 4

Error in the measurement of radius of a sphere is 1%. The error in the calculated value of its volume is:

Detailed Solution for Test: Measurement & Error Analysis - Question 4

∵ V = (4/3)πr3
% error is volume = 3 × error in radius = 3 × 1 = 3%

Test: Measurement & Error Analysis - Question 5

The error in two readings of A are 0.01 and -0.03, then mean absolute error is?

Detailed Solution for Test: Measurement & Error Analysis - Question 5

Absolute error 
Mean absolute error

Test: Measurement & Error Analysis - Question 6

At a certain place, the acceleration due to gravity is determined using a simple pendulum. The length of the pendulum is 25.0 cm and a stopwatch with least count is 1 s measures the time taken by the pendulum for 40 oscilations to be 50 s. the accuracy in the measurement of g is:

Detailed Solution for Test: Measurement & Error Analysis - Question 6

Test: Measurement & Error Analysis - Question 7

The most suitable instrument for measuring the size of an atom is:

Detailed Solution for Test: Measurement & Error Analysis - Question 7

Only electron microscope has resolution of 0.5-0.6 Angstrom which is less than the size of an atom.

Test: Measurement & Error Analysis - Question 8

Which is the most accurate atomic clock?

Detailed Solution for Test: Measurement & Error Analysis - Question 8

Cesium 133 is the element most commonly chosen for atomic clocks.

Test: Measurement & Error Analysis - Question 9

The method used to measure the distance of a planet from the earth is:

Detailed Solution for Test: Measurement & Error Analysis - Question 9

The astronomers mainly use parallax method to find distances to objects like other planets. To calculate the distance to a star or to a planet, astronomers observe it from different places along Earth's orbit around the Sun.

Test: Measurement & Error Analysis - Question 10

What is the percentage error in the physical quantity A if it is related to four other physical quantities a, b, c and d as The percentage error in measurement of a, b, c and d are 1%, 3%, 2% and 2% respectively.

Detailed Solution for Test: Measurement & Error Analysis - Question 10

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