In Young’s double slit experiment with sodium vapour lamp of wavelength

In Young’s double slit experiment with sodium vapour lamp of wavelength 589 nm and the slits 0.589 mm apart, the half angular width of the central maximum is

Options

(a) sin⁻¹ 0.01
(b) sin⁻¹ 0.0001
(c) sin⁻¹ 0.001
(d) sin⁻¹ 0.1

Correct Answer:

sin⁻¹ 0.001

Explanation:

sin θ = λ / d

= 589 × 10⁻⁹ / 0.589 × 10⁻³ = 10⁻³ = 1 / 1000 = 0.001

Therefore, θ = sin⁻¹ 0.001

admin:

Related Questions

  1. The oscillating frequency of a cyclotron is 10 MHz. If the radius of its Dees is o.5 m,
  2. The fluctuation in the input voltage of 200 V to a domestic circuit is +10V
  3. The electromagnetic waves detected using a thermopile and used in physical therapy
  4. A train moving at a speed of 220 ms⁻¹ towards a stationary object
  5. When a piece of metal is illuminated by a monochromatic light of wavelength λ,