MCQ
Calculate the relative errors in measurement of mass $1.02\text{g}\pm0.01\text{g}$ and $9.89\text{g}\pm0.01\text{g}$
- A$\pm1\%$ and $\pm0.2\%$
- ✓$\pm1\%$ and $\pm0.1\%$
- C$\pm2\%$ and $\pm0.3\%$
- D$\pm3\%$ and $\pm0.4\%$
✓
Answer
Correct option: B.
$\pm1\%$ and $\pm0.1\%$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A gas is taken through the cycle $A\to B\to C\to A$ as shown. What is the net work done by the gas ...... $J$ $?$
→Two wires $‘A’$ and $‘B’$ of the same material have radii in the ratio $2 : 1$ and lengths in the ratio $4 : 1$. The ratio of the normal forces required to produce the same change in the lengths of these two wires is
→Five masses are placed in a plane as shown in figure. The coordinates of the centre of mass are nearest to.
For a constant hydraulic stress on an object, the fractional change in the object's volume $\left( {\frac{{\Delta V}}{V}} \right)$ and its bulk modulus $(B)$ are related as
→A water cooler of storage capacity $120$ litres can cool water at a constant rate of $P$ watts. In a closed circulation system (as shown schematically in the figure), tr e wat'r from the cooler is used to cool an external device that generates constantly $3 \mathrm{~kW}$ of heat (thermal load). The temperature of water fed into the device cannot exceed $30^{\circ} \mathrm{C}$ and the e.tire stored $120$ litres of water is initially cooled to $10^{\circ} \mathrm{C}$. The entire system is thermally insulat $\mathrm{d}$. The minimum value of $P$ (in watts) for which the device can be operated for $3$ hours is
→(Specific heat of water is $4.2 \mathrm{~kJ}^{-1} \mathrm{~kg}^{-1}$ and the density of water is $10.$) $0 \mathrm{k}^2 \mathrm{~m}^{-3}$ )
The angle between vectors $(\vec{M} \times \vec{N})$ and $(\bar{N} \times \vec{M})$ is ................
→During an adiabatic compression, $830\, J$ of work is done on $2\, moles$ of a diatomic ideal gas to reduce its volume by $50\%$. The change in its temperahture is nearly..... $K$ $(R\, = 8.3\, J\,K^{-1}\, mol^{-1} )$
→When vapour condenses into liquid
A body of $10\, kg$ is acted by a force of $129.4\, N$ if $g = 9.8\,m/{\sec ^2}$. The acceleration of the block is $10\,m/{s^2}$. What is the coefficient of kinetic friction
→A ball is dropped from the top of a $100\; m$ high tower on a planet. In the last $\frac{1}{2}\;s $ before hitting the ground, it covers a distance of $19\; \mathrm{m}$. Acceleration due to gravity (in $\mathrm{ms}^{-2}$ ) near the surface on that planet is
→