Download App

7. gravitation — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics7. gravitation1 Mark
MCQ
Two objects of equal masses placed at certain distance from each other attracts each other with a force of $F$. If one-third mass of one object is transferred to the other object, then the new force will be
  • A
    $\frac{2}{9}F$
  • B
    $\frac{16}{9}F$
  • ✓
    $\frac{8}{9}F$
  • D
    $F$
✓

Answer

Correct option: C.
$\frac{8}{9}F$
c
$F =\frac{ Gm ^{2}}{ r ^{2}}$

$F ^{\prime}=\frac{ G \left(\frac{4 m }{3}\right) \times\left(\frac{2 m }{3}\right)}{ r ^{2}}$

$F ^{\prime}=\frac{8}{9} F$

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 7. gravitation→7. gravitation — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

A bungee jumper is jumping with help of elastic ideal rope (Force constant $K$). Jumper steps off the bridge and falls from the rest towards the river below. He does not hit the water. The mass of jumper is $m$, natural length of rope is $l$. Gravity is $g$, assume every thing ideal. then, choose the incorrect option
→
At shallow depth $h$, the pressure in the ocean is simply given by $P = P_0 + \rho gh$, in which $\rho$ is the density of water and $P_0$ is the air pressure. As we go deeper, the high pressure causes the water to compress and become denser. Which of the following sketches illustrates the correct dependence of the pressure on the depth $h$ ?
→
The molar specific heat at constant pressure of an ideal gas is $(7/2)R.$ The ratio of specific heat at constant pressure to that at constant volume is
→
If the surface area of the soap solution is increased then its surface tension
→
If a particle moves in a circle describing equal angles in equal times, its velocity vector
→
A particle with total mechanical energy, which is small and negative. Its under the influence of a one dimensional potential $U(x)=x^{4} / 4-x^{2} / 2 \,J$, where $x$ is (in metre). At time $t=0 \,s$, it is at $x=-0.5 \,m$. Then, at a later time it can be found
→
$0.93$ $watt-hour$ of energy is supplied to a block of ice weighing $10\,gm.$ It is found that
→
A man on a rectilinearly moving cart, facing the direction of motion, throws a ball straight up with respect to himself
→
A body of mass $5\ kg$ undergoes a change in speed from $30$ to $40\ m/ s.$ Its momentum would increase by:
→
Assume the aerodynamic drag force on $a$ car is proportional to its speed. If the power output from the engine is doubled, then the maximum speed of the car.
→