KVPY2014PhysicsRay Optics
The angles of incidence and refraction of a monochromatic ray of light of wavelength at an air glass inteface are i and r , respectively. A parallel beam of light with a small spread in wavelenth about a mean wavelenth is refracted at the same air-glass interface. The refractive index of glass depends on the wavelength as ( )= a + b / ² where a and b are constant. Then the angular spread in the angle of refraction of
Options
- A| i ³ r |
- B| 2 ~b ³ |
- C| 2 ~b r a ³+ b |
- D| 2 ~b ( a + b / ² ) i ³ |
Correct answer
C. | 2 ~b r a ³+ b |
Step-by-step solution
No Solution