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BITSAT 2012
Exam
BITSAT
Year
2012
Subject
Physics
Chapter
Wave Optics

BITSAT 2012 · Physics · Wave Optics

A mica slit of thickness t and refractive index μ is introduoed in...

A mica slit of thickness t and refractive index μ\mu is introduoed in theray from the first source S1S_{1}. By how much distance of fringes pattern will be displaced?

Options

  1. AdD(μ−1)t\frac{\mathrm{d}}{\mathrm{D}}(\mu-1) \mathrm{t}
  2. BDd(μ−1)t\frac{\mathrm{D}}{\mathrm{d}}(\mu-1) \mathrm{t}
  3. Cd(μ−1)D\frac{\mathrm{d}}{(\mu-1) \mathrm{D}}
  4. DDd(μ−1)\frac{D}{d}(\mu-1)

Correct answer

B. Dd(μ−1)t\frac{\mathrm{D}}{\mathrm{d}}(\mu-1) \mathrm{t}

Step-by-step solution

Hint: The laws of Electromagnetic Induction give us idea about the various ways in which we can produce Electric Current using Electric or Magnetic field. Correct Option is D. Explanation for correct answer: - Galvanometer is a device which detects current in the circuit. - Voltmeter is a device which measures potential difference between two points in the circuit. - Electric motor is a device which converts Electrical Energy into Mechanical Energy. - Electric Generator is an device which produces Electric Current from Mechanical energy, Chemical energy, or by using Magnetic or Electric Fields. The laws if Electromagnetic Induction are used in Electric Generator which produces Electric Current from Magnetic or Electric Fields.
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