KCET2011PhysicsWave Optics
A parallel beam of light of wavelength 6000 Å gets diffracted by a single slit of width 0.3 ~mm . The angular position of the first minima of diffracted light is
Options
- A2 10⁻³ rad
- B3 10⁻³ rad
- C1.8 10⁻³ rad
- D6 10⁻³ rad
Correct answer
A. 2 10⁻³ rad
Step-by-step solution
Given, =6000 Å=6000 10⁻¹⁰ ~m and n=0.3 ~mm =0.3 10⁻³ ~m 0.3 10⁻³ =6000 10⁻¹⁰ =2 10⁻³ or =2 10⁻³ rad