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Wave Optics — Physics STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 SciencePhysicsWave Optics1 Mark
MCQ
Consider a medium through which light is propagating with a speed v. Given a wavefront, in order to determine the wavefront after a time interval $\Delta t$ the secondary wavelets are drawn with a radius.
  • A
    of unit length
  • ✓
    $v \Delta t$
  • C
    $\frac{\Delta t}{v}$
  • D
    $\frac{y}{\Delta t}$
✓

Answer

Correct option: B.
$v \Delta t$
$v \Delta t$

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