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JEE Main 20203 SeptemberMorning Shift
Exam
JEE Main
Year
2020
Date
3 September
Shift
Morning Shift
Subject
Physics
Chapter
Wave Optics

JEE Main 2020 · 3 September · Morning Shift · Physics · Wave Optics

In a Young's double slit experiment, light of 500nm is used to...

In a Young's double slit experiment, light of 500nm500nm is used to produce and interference pattern. When the distance between the slits is 0.05mm,0 . 05mm, the angular width (in degree) of the fringes formed on the distance screen is close to :

Options

  1. A0.17°0 . 17 °
  2. B0.57°0 . 57 °
  3. C1.7°1 . 7 °
  4. D0.07°0 . 07 °

Correct answer

B. 0.57°0 . 57 °

Step-by-step solution

β0=λd=500×10−95×10−5=10−2{\beta}_{0} = \dfrac{\lambda}{d} = \dfrac{500 \times {10}^{- 9}}{5 \times {10}^{- 5}} = {10}^{- 2} rad

∴β0=0.57°∴ {\beta}_{0} = 0 .57 °

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