In the previous question, minimum possible error in area measurement can be -

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ANAND_YADAV Asked Jul 29, 2023

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Chandan Asked Sep 12, 2023

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If x= (a-b), the maximum percentage error in the measurement of x will be —

Chandan Asked Sep 12, 2023

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ANAND_YADAV Asked Jul 29, 2023

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To estimate ' $g$ ' (from $g=4 \pi^{2} \frac{L}{T^{2}}$ ), error in measurement of $L$ is $\pm 2 \%$ and error in measurement of $T$ is $\pm 3 \%$. The error in estimated ' $g$ ' will be -

ANAND_YADAV Asked Jul 29, 2023

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ALOK_RAJ Asked Apr 25

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If the eye is kept very close to a converging lens (focal length = 10 cm) and at the optical centre of the lens and an object is kept at distance 'd' then the minimum distance 'd' of the object from the lens so that its image can be seen clearly by the defect free eye is :

ALOK_RAJ Asked Apr 25

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ANAND_YADAV Asked Jul 29, 2023

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An experiment measures quantities $x, y, z$ and then $t$ is calculated from the data as $t=\frac{x y^{2}}{z^{3}}$. If percentage errors in $x , y$ and $z$ are respectively $1 \%, 3 \%, 2 \%$, then percentage error in $t$ is :

ANAND_YADAV Asked Jul 29, 2023

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ANAND_YADAV Asked Jul 30, 2023

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A student performs an experiment for determination of $g\left(=\frac{4 \pi^{2} \ell}{ T ^{2}}\right), \ell \approx 1 m$, and he commits an error of $\Delta \ell$.

ANAND_YADAV Asked Jul 30, 2023

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Aayush Asked Feb 7

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In the above question; how the numerical value is affected —

Aayush Asked Feb 7

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ANAND_YADAV Asked Jul 29, 2023

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The external and internal diameters of a hollow cylinder are measured to be $(4.23 \pm 0.01) cm$ and $(3.89 \pm 0.01) cm$. The thickness of the wall of the cylinder is

ANAND_YADAV Asked Jul 29, 2023

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ANAND_YADAV Asked Jul 29, 2023

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The edge of a cube is $a=1.2 \times 10^{-2} m$. Then its volume will be recorded as :

ANAND_YADAV Asked Jul 29, 2023

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Aayush Asked Feb 2

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A, B and C elements have the oxidation number of +6, -2 and -1 respectively. The possible molecular formula when these atoms combine can be —

Aayush Asked Feb 2

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Chandan Asked Sep 11, 2023

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A long spring is stretched by 2 cm, it potential energy is U. If the spring is stretched by 10 cm, the potential energy stored in it will be —

Chandan Asked Sep 11, 2023

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ANAND_YADAV Asked Jul 29, 2023

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The mass of a ball is $1.76 kg$. The mass of 25 such balls is

ANAND_YADAV Asked Jul 29, 2023

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Shiv roshan kushwaha Asked Apr 3, 2022

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A heavy uniform chain lies on a horizontal table. If the coefficient of friction between the chain and the table is 0.25. then the maximum fraction of the length of the chain that can hang over one edge of the table is

Shiv roshan kushwaha Asked Apr 3, 2022

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ANAND_YADAV Asked Jul 30, 2023

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The respective number of significant figures for the numbers $23.023,0.0003$ and $2.1 \times 10^{-3}$ are

ANAND_YADAV Asked Jul 30, 2023

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Chandan Asked Sep 13, 2023

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A large tank A of water is kept at a constant temperature $\theta_0$.conductor of length l, area of cross-section A and thermal conductivity K.

Chandan Asked Sep 13, 2023

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Aayush Asked Feb 7

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Is it correct to say that two quantities which are to be added must have the same dimension.

Aayush Asked Feb 7

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Aayush Asked Feb 7

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Is it correct to say that two quantities which are to be multiplied must have the same dimension.

Aayush Asked Feb 7

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ANAND_YADAV Asked Jul 29, 2023

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The length of a rectangular plate is measured by a meter scale and is found to be $10.0 cm$. Its width is measured by vernier callipers as $1.00 cm$.

ANAND_YADAV Asked Jul 29, 2023

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Chandan Asked Oct 6, 2023

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Obtain the dimension of the constant 'a' and 'b' involved in the Vander Waal's equation of state.

Chandan Asked Oct 6, 2023

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Chandan Asked Sep 15, 2023

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A body of mass m kg is rotating in a vertical circle at the end of a string of length r metre.

Chandan Asked Sep 15, 2023

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Chandan Asked Sep 11, 2023

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A vessel of volume $8.0 \times 10^{-3} m ^{3}$ contains an ideal gas at 300 K and 200 kPa. The gas is allowed to leak till the pressure falls to 125 kPa. Calculate the amount of the gas (in moles) leaked assuming that the temperature remains constant.

Chandan Asked Sep 11, 2023

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Chandan Asked Sep 11, 2023

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A particle moves along x-axis obeying the equation x= t(t-1)(t-2), where x (in meters) is the position of the particle at any time t (in seconds).

Chandan Asked Sep 11, 2023

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ALOK_RAJ Asked Aug 12, 2023

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In the equation $X=3 Y Z^{2}, X$ and $Z$ have dimension of capacitance and magnetic induction. What is the dimension of $Y$ in SI system.

ALOK_RAJ Asked Aug 12, 2023

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Chandan Asked Aug 6, 2023

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A driver decreases the speed of a car from 25 m/s to 10 m/s in 5 Find the acceleration of the car.

Chandan Asked Aug 6, 2023

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Chandan Asked Aug 4, 2023

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Force acting on a particle moving in a straight line varies with the velocity of the particle $\nu$ as $F \equiv \frac{K}{v}$.

Chandan Asked Aug 4, 2023

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ALOK_RAJ Asked Aug 3, 2023

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Thomas throws a silver coin in the sea. The density of the coin is 0.985 gm/m3. Will the coin float on the surface of water or it will sink?

ALOK_RAJ Asked Aug 3, 2023

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ANAND_YADAV Asked Aug 2, 2023

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A particle moves in x-y plane according to the equations x=4t^{2}+5t+16 and y=5t where x, y are in meter and t is in second. The acceleration of the particle is

ANAND_YADAV Asked Aug 2, 2023

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Chandan Asked Aug 1, 2023

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In a series LCR circuit, the voltage across the resistance, capacitance and inductance is 10V each.

Chandan Asked Aug 1, 2023

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Chandan Asked Aug 1, 2023

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A coil in the shape of an equilateral triangle of side 0.02 m is suspended from its vertex such that

Chandan Asked Aug 1, 2023

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AnjaliYadav Asked Nov 5, 2022

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Calculate the dimension of $\alpha, \beta$ and $\gamma$ in the equation, $E =\alpha M +\beta M ^{-1} LT ^{-2}+\gamma MLT ^{-1}$ where $E$ represents energy.

AnjaliYadav Asked Nov 5, 2022

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Aayush Asked Feb 8

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It is found that error in the measurement of the radius of a sphere is 1%; then what is the error in the measurement of its volume?

Aayush Asked Feb 8

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Aayush Asked Feb 7

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In a given slide callipers 10 division of its vernier coincides with its 9 main scale division.

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Chandan Asked Aug 1, 2023

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A galvanometer of resistance 25Ω is connected to a battery of 2V along with a resistance in series.

Chandan Asked Aug 1, 2023

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Chandan Asked Aug 1, 2023

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In a cyclotron, a magnetic induction of 1.4 T is used to accelerate protons.

Chandan Asked Aug 1, 2023

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AnjaliYadav Asked Aug 14, 2022

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Ashish always tried to understand the theoretical concepts learnt in his class better by performing the experiment in laboratory, whenever possible.

AnjaliYadav Asked Aug 14, 2022

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ANAND_YADAV Asked Jul 30, 2023

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Arsenic estimation can be done by Bettendorff's process. The reaction is given below:

ANAND_YADAV Asked Jul 30, 2023

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