Units & Measurement PYQs - Last 10 Years

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Practice 33 NEET Physics questions from Units & Measurement. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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Last 10 Years Units & Measurement Questions

Showing 33 of 33 filtered questions.

1Units And Measurement

One main scale division of a Vernier calliper is equal to 1 mm and the number of divisions on the Vernier scale is 10 . When both the jaws touch each other, the Vernier scale shifts to the left of zero of the main scale in such a way that $...

2Units And Measurement

Consider that $\sigma_s, k_B, b$ represents Stefan-Boltzmann constant, Boltzmann constant and Wien's displacement law constant, respectively. The dimension of $\sigma_s k_B^{-1} b$ is

3Units And Measurement

In a vernier calliper, 20 VSD coincide with 16 MSD (each division of length 1 mm ). The least count of the vernier callipers is:

4Units And Measurement

Each side of a metallic cube of mass 5.580 kg is measured to the 9.0 cm . Keeping the significant figures in view, the density of the material of the cube can be best expressed as $X \times 10^3 \mathrm{~kg} \mathrm{~m}^{-3}$ where the valu...

5Units And Measurement

The speed of light in vacuum is taken as unity. If light takes 6 min 40 s to reach the Earth from the Sun, the distance between the Sun and the Earth in new unit is:

6Units And Measurement

A balloon is made of a material of surface tension $S$ and its inflation outlet (from where gas is filled in it) has small area $A$. It is filled with a gas of density $\rho$ and takes a spherical shape of radius $R$. When the gas is allowe...

7Units And Measurement

A physical quantity $P$ is related to four observations $a, b, c$ and $d$ as follows:
\(P=a^3 b^2 / c \sqrt{d}\)
The percentage errors of measurement in $a, b, c$ and $d$ are $1 \%, 3 \%, 2 \%$, and $4 \%$ respectively. The percentage error...

8Units And Measurement

Consider the diameter of a spherical object being measured with the help of a Vernier callipers. Suppose its 10 Vernier Scale Divisions (V.S.D.) are equal to its 9 Main Scale Divisions (M.S.D.). The least division in the M.S. is 0.1 cm and ...

9Units And Measurement

The potential energy of a particle moving along \(x\)-direction varies as \(V=\frac{A x^2}{\sqrt{x}+B}\). The dimensions of \(\frac{A^2}{B}\) are:

10Units And Measurement

The pitch of an error free screw gauge is \(1 \mathrm{~mm}\) and there are 100 divisions on the circular scale. While measuring the diameter of a thick wire, the pitch scale reads \(1 \mathrm{~mm}\) and \(63^{\text {rd }}\) division on the ...

11Units And Measurement

In an electrical circuit, the voltage is measured as \(V=(200 \pm 4)\) volt and the current is measured as \(I=(20 \pm 0.2)\) A. The value of the resistance is:

12Units And Measurement

A force defined by \(F=\alpha t^2+\beta t\) acts on a particle at a given time \(t\). The factor which is dimensionless, if \(\alpha\) and \(\beta\) are constants, is:

13Units And Measurement

The quantities which have the same dimensions as those of solid angle are:

14Units And Measurement

In a vernier callipers, \((N+1)\) divisions of vernier scale coincide with \(N\) divisions of main scale. If \(1 \mathrm{~MSD}\) represents \(0.1 \mathrm{~mm}\), the vernier constant (in \(\mathrm{cm}\)) is:

15Units And Measurement

The mechanical quantity, which has dimensions of reciprocal of mass \((\mathrm{M}^{-1})\) is :

16Units And Measurement

The diameter of a spherical bob, when measured with vernier callipers yielded the following values : \(3.33 \mathrm{~cm}, 3.32 \mathrm{~cm}, 3.34 \mathrm{~cm}, 3.33 \mathrm{~cm}\) and \(3.32 \mathrm{~cm}\). The mean diameter to appropriate ...

17Units And Measurement

A metal wire has mass \((0.4 \pm 0.002) ~\mathrm{g}\), radius \((0.3 \pm 0.001) ~\mathrm{mm}\) and length \((5 \pm 0.02) ~\mathrm{cm}\). The maximum possible percentage error in the measurement of density will nearly be :

18Units And Measurement

The errors in the measurement which arise due to unpredictable fluctuations in temperature and voltage supply are :

19Units And Measurement

The percentage error in the measurement of g is : (Given that \(g = {{4{\pi ^2}L} \over {{T^2}}}\), \(L = (10\, \pm \,0.1)\) cm, \(T = (100\, \pm \,1)\) s)

20Units And Measurement

The physical quantity that has the same dimensional formula as pressure is

21Units And Measurement

The area of a rectangular field (in m2) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digits is

22Units And Measurement

Plane angle and solid angle have

23Units And Measurement

The dimensions [MLT\(-\)2A\(-\)2] belong to the

24Units And Measurement

If force [F], acceleration [A] and time [T] are chosen as the fundamental physical quantities. Find the dimensions of energy.

25Units And Measurement

A screw gauge gives the following readings when used to measure the diameter of a wire Main scale reading : 0 mmCircular scale reading : 52 divisionsGiven that 1 mm on main scale corresponds to 100 divisions on the circular scale. The diame...

26Units And Measurement

The E and G respectively denote energy and gravitational constant, then \({E \over G}\) has the dimensions of :

27Units And Measurement

Dimensions of stress are :

28Units And Measurement

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 :

29Units And Measurement

Taking into account of the significant figures, what is the value of \(9.99 m - 0.0099m\)?

30Units And Measurement

The energy required to break one bond in DNA is 10-20 J. This value in eV is nearly :

31Units And Measurement

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 = $${{{A^2}{B^{1/2}}} \over...

32Units And Measurement

A student measured the diameter of a small
steel ball using a screw gauge of least count
0.001 cm. The main scale reading is 5 mm and
zero of circular scale division coincides with
25 divisions above the reference level. If screw
gauge has ...

33Units And Measurement

A physical quantity of the dimensions of length that can be formed out of c, G and \({{{e^2}} \over {4\pi {\varepsilon _0}}}\) is [c is velocity of light, G is the universal constant of gravitation and e is charge]