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

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