Wave Optics · JEE Main previous year questions

2005 3 questions

1. Q1342005 · 28 Apr 2005 · Shift 1

   A Young's double slit experiment uses a monochromatic source. The shape of the interference fringes formed on a screen is

   1. A.circle
   2. B.hyperbola
   3. C.parabola
   4. D.straight line
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   Answer: D

2. Q1352005 · 28 Apr 2005 · Shift 1

   If $I_0$ is the intensity of the principal maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled?

   1. A.$4I_0$
   2. B.$2I_0$
   3. C.$\frac{I_0}{2}$
   4. D.$I_0$
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   Answer: D

3. Q1362005 · 28 Apr 2005 · Shift 1

   When an unpolarized light of intensity $I_0$ is incident on a polarizing sheet, the intensity of the light which does not get transmitted is

   1. A.$\frac{1}{4}{I}_0$
   2. B.$\frac{1}{2}{I}_0$
   3. C.$I_0$
   4. D.$\mathrm{zero}$
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   Answer: B