Download App

4.1 , newtons laws of motion — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics4.1 , newtons laws of motion1 Mark
MCQ
Three solids of masses ${m_1},\,{m_2}$ and ${m_3}$ are connected with weightless string in succession and are placed on a frictionless table. If the mass ${m_3}$ is dragged with a force T, the tension in the string between ${m_2}$ and ${m_3}$ is
  • A
    $\frac{{{m_2}}}{{{m_1} + {m_2} + {m_3}}}T$
  • B
    $\frac{{{m_3}}}{{{m_1} + {m_2} + {m_3}}}T$
  • ✓
    $\frac{{{m_1} + {m_2}}}{{{m_1} + {m_2} + {m_3}}}T$
  • D
    $\frac{{{m_2} + {m_3}}}{{{m_1} + {m_2} + {m_3}}}T$
✓

Answer

Correct option: C.
$\frac{{{m_1} + {m_2}}}{{{m_1} + {m_2} + {m_3}}}T$
c
(c)$T' = ({m_1} + {m_2}) \times \frac{T}{{{m_1} + {m_2} + {m_3}}}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 4.1 , newtons laws of motion→4.1 , newtons laws of motion — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

A body performing unifom circular motion completed $140$ revolution in a second. Its angular speed is .......... $rad / s$
→
A vehicle with a horn of frequency $n$ is moving with a velocity of $30\, m/s$ in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency $n + {n_1}$. Then (if the sound velocity in air is $300\, m/s$)
→
The bulk modulus of rubber is $9.1 \times 10^8\,N/m^2$. To what depth a rubber ball be taken in a lake so that its volume is decreased by $0.1\%$ ? ....... $m$
→
In a tug-of-war contest, two men pull on a horizontal rope from opposite sides. The winner will be the man who
→
A rod of mass $M$ and length $L$ is lying on a horizontal frictionless surface. A particle of mass ' $m$ ' travelling along the surface hits at one end of the rod with velocity $'u'$ in a direction perpendicular to the rod. The collision is completely elastic. After collision, particle comes to rest. The ratio of masses $\left(\frac{m}{M}\right)$ is $\frac{1}{x}$. The value of ' $x$ ' will be ..... .
→
The change in volume $V$ with respect to an increase in pressure $P$ has been shown in the figure for a non-ideal gas at four different temperatures ${T_1},\,{T_2},\,{T_3}$ and ${T_4}$. The critical temperature of the gas is
→
A bob is whirled in a horizontal plane by means of a string with an initial speed of $\omega \mathrm{rpm}$. The tension in the string is $T$. If speed becomes $2 \omega$ while keeping the same radius, the tension in the string becomes:
→
The angle turned by a body undergoing circular motion depends on time as $\theta = {\theta _0} + {\theta _1}t + {\theta _2}{t^2}$. Then the angular acceleration of the body is
→
Electric conduction takes place in a discharge tube due to the movement of:
→
Consider a heat engine as shown in $Q_1$ and $Q_2$ are heat added to heat bath $T_1$ and heat taken from $T_2$ in one cycle of engine. W is the mechanical work done on the engine. If $\mathrm{W}>0$, then possibilities are:
→