ExamBro
ExamBro
AP EAMCET · PHYSICS · Wave Optics

In Young's double slit experiment, if the distance between the slits is 2 mm and the distance of the screen from the slits is 100 cm, the fringe width is 0.36 mm. If the distance between the slits is decreased by 0.5 mm and the distance of the screen from the slits is increased by 50 cm, the fringe width becomes

  1. A 0.84 mm
  2. B 0.96 mm
  3. C 0.48 mm
  4. D 0.72 mm
Verified Solution

Answer & Solution

Correct Answer

(D) 0.72 mm

Step-by-step Solution

Detailed explanation

\(d_1 = 2 \text{ mm}, D_1 = 100 \text{ cm}, \beta_1 = 0.36 \text{ mm}\) \(d_2 = 2 - 0.5 = 1.5 \text{ mm}\) \(D_2 = 100 + 50 = 150 \text{ cm}\) \(\beta_2 = \beta_1 \frac{D_2}{D_1} \frac{d_1}{d_2}\)…