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MHT CET2010PhysicsWave Optics

In a Young's double slit experiment, the fringe width is found to be 2 ~mm , when light of wavelength 6000 Å is used. Find the change in fringe width if the whole apparatus is immersed in water of refractive index 1.33 .

Options

  1. A0.5 ~mm
  2. B1 ~mm
  3. C1.5 ~mm
  4. D2 ~mm

Correct answer

C. 1.5 ~mm

Step-by-step solution

Fringe width =2 ~mm =2 10⁻³ ~m aligned &=6000 Å &=1.33 ^ &=? ^ &= &= 2 1.33 =1.5 ~mm aligned

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