Download App

Motion in a Straight Line — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsMotion in a Straight Line1 Mark
MCQ
Two stones are dropped down simultaneously from different heights. At the starting time, the distance between them is $30\ cm.$ After $1\ s,$ the distance between the two stones will be $(g = 10\ ms^{-2}).$
  • A
    $10\ cm$
  • B
    $20\ cm$
  • ✓
    $30\ cm$
  • D
    $0\ cm$
✓

Answer

Correct option: C.
$30\ cm$
$c. 10\ cm$
Explanation:
After $2\ s$ or any difference in seconds, separation will be $30\ cm$ only as both bodies covers same distance for same time interval under gravity.

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 Motion in a Straight Line→Motion in a Straight Line — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

A standing wave pattern is formed on a string. One of the waves is given by equation ${y_1} = a\,\cos \,\left( {\omega t - kx + \pi /3} \right)$ then the equation of the other wave such that at $x = 0$ a node is formed
 
→
A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top of a smooth incline and released. Least time will be taken in reaching the bottom by:
→
Two identical particles are moving with same velocity $v$  as shown in figure. If the collision is completely inelastic then
→
A wind-powered generator converts wind energy into electrical energy. Assume that the generator converts a fixed fraction of the wind energy intercepted by its blades into electrical energy. For wind speed $v$, the electrical power output will be most likely proportional to
→
A projectile is fired at $30^{\circ}$ to the horizontal, The vertical component of its velocity is $80 \;ms ^{-1}$, Its time flight is $T$. What will be the velocity of projectile at $t =\frac{ T }{2}$?
→
The efficiency of carnot engine is $50\%$ and temperature of sink is $500\;K$. If temperature of source is kept constant and its efficiency raised to $60\%$, then the required temperature of the sink will be
→
A pendulum clock is set to give correct time at the sea level. This clock is moved to hill station at an altitude of $2500\, m$ above the sea level. In order to keep correct time of the hill station, the length of the pendulum
→
The excess pressure in a soap bubble is thrice that in other one. Then the ratio of their volume is
→
A solid cube of copper of edge $10 \,cm$ subjected to a hydraulic pressure of $7 \times 10^6\, pascal$. If Bulk modulus of copper is $140 \,GPa$, then contraction in its volume will be ................ $m ^3$
→
Two exactly similar wires of steel and copper are stretched by equal forces. If the total elongation is $2 \,cm$, then how much is the elongation in steel and copper wire respectively? Given, $Y_{\text {steel }}=20 \times 10^{11} \,dyne / cm ^2$, $Y_{\text {copper }}=12 \times 10^{11} \,dyne / cm ^2$
→