Physics : XI-CH02 – Units and Measurements – PYQ

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10 Random question from this chapter are displayed, you can take the quiz multiple times to cover all questions

These questions are taken from all previous year question papers of NEET Exam

1 / 10

A student measures the distance traversed in free fall of a body, initially at rest, in a given time. He uses this data to estimate g, the acceleration due to gravity. If the maximum percentage errors in measurement of the distance and the time are e₁ and e₂ respectively, the percentage error in the estimation of g is

e₂ – e₁

e₁ + 2e₂

e₁ + e₂

e₁ – 2e₂

2 / 10

The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionality are

kg m s^-1

kg m s^-2

kg s^-1

kg s

3 / 10

Percentage errors in the measurement of mass and speed are 2% and 3% respectively. The error in the estimate of kinetic energy obtained by measuring mass and speed will be

8%

2%

12%

10%

4 / 10

The unit of thermal conductivity is

W m^-1 K^-1

J m K^-1

J m^-1 K^-1

W m K^-1

5 / 10

In an experiment, four quantities a, b, c and d are measured with percentage error 1%, 2%, 3% and 4% respectively. Quantity P is calculated as follows P = a³b²/ cd , % error in P is

7%

4%

14%

10%

6 / 10

The unit of permittivity of free space, e0, is

coulomb/newton-metre

newton-metre²/coulomb²

coulomb²/newton-metre²

coulomb²/(newton-metre)²

7 / 10

In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2%, 3% and 4% respectively. Then the maximum percentage of error in the measurement X, where X = A²B^1/2 / C^1/3D³ will be

10%

(3/13)%

16%

–10%

8 / 10

A screw gauge has least count of 0.01 mm and there are 50 divisions in its circular scale. The pitch of the screw gauge is

0.01 mm

0.25 mm

0.5 mm

1.0 mm

9 / 10

If the error in the measurement of radius of a sphere is 2%, then the error in the determination of volume of the sphere will be

8%

2%

4%

6%

10 / 10

The main scale of a vernier callipers has n divisions/cm. n divisions of the vernier scale coincide with (n – 1) divisions of main scale. The least count of the vernier callipers is

1/ (n + 1) (n − 1) cm

1/n cm

1/n2² cm

1/ n(n + 1) cm

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