Download App

13. oscillations — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics13. oscillations1 Mark
MCQ
Two particles undergo $SHM$ along parallel lines with the same time period $(T)$ and equal amplitudes. At a particular instant, one particle is at its extreme position while the other is at its mean position. They move in the same direction. They will cross each other after a further time
  • A
    $T/8$
  • ✓
    $3T/8$
  • C
    $T/6$
  • D
    $4T/3$
✓

Answer

Correct option: B.
$3T/8$
b
$\mathrm{x}_{1}=\mathrm{A} \cos \omega \mathrm{t}$

$\mathrm{x}_{2}=-\mathrm{A} \sin \omega \mathrm{t}$

if they will cross each other

$X_{1}=X_{2}$

for crossing first time

time $=\frac{3 \mathrm{T}}{8}$

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 13. oscillations→13. oscillations — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

For a certain organ pipe, the first three resonance frequencies are in the ratio of $1:3:5$ respectively. If the frequency of fifth harmonic is $405\,Hz$ and the speed of sound in air is $324 \,ms ^{-1}$ the length of the organ pipe is $..........m.$
→
A motor cycle starts from rest and accelerates along a straight path at $2 \;m / s ^{2}$. At the starting point of the motor cycle there is a stationary electric siren. How far has the motor cycle gone when the driver hears the frequency of the siren at $94 \%$ of its value when the motor cycle was at rest?

(Speed of sound $=330 ms ^{-1}$)

→
An open and wide glass tube is immersed vertically in mercury in such a way that length $0.05\,\, m$ extends above mercury level. The open end of the tube is closed and the tube is raised further by $0.43 \,\,m$. The length of air column above mercury level in the tube will be ...... $m$ Take $P_{atm} = 76 \,\,cm$ of mercury 
→
A container with rigid walls is covered with perfectly insulating material. The container is divided into two parts by a partition. One part contains a gas while the other is fully evacuated (vacuum). The partition is suddenly removed. The gas rushes to fill the entire volume and comes to equilibrium after a little time. If the gas is not ideal, then
→
Two bodies moving towards each other collide and move away in opposite directions. There is some rise in temperature of bodies because a part of the kinetic energy is converted into
→
A source of sound $S$ of frequency $500 Hz$ situated between a stationary observer $O$ and a wall $W$, moves towards the wall with a speed of $2 m/s$. If the velocity of sound is $332 m/s$, then the number of beats per second heard by the observer is (approximately)
→
A rectangular block is $5 cm × 5 cm × 10cm$  in size. The block is floating in water with $ 5 cm $ side vertical. If it floats with $10 cm $ side vertical, what change will occur in the level of water?
→
From an inclined plane a sphere, a disc, a ring and a shell are rolled without slipping. The order of their reaching at the base will be
→
When two sound waves with a phase difference of $\pi /2$, and each having amplitude $A$ and frequency $\omega $, are superimposed on each other, then the maximum amplitude and frequency of resultant wave is
→
A thermodynamic cycle takes in heat energy at a high temperature and rejects energy at a lower temperature. If the amount of energy rejected at the low temperature is $3$ times the amount of work done by the cycle, the efficiency of the cycle is
→