 
                 
                InterviewSolution
 Saved Bookmarks
    				| 1. | : A soap film of refractive index 4/3 and ofthickness 1.5 x 104 cm is illuminated bywhite light incident at an angle of 45°.The light reflected by it is examined by aspectroscope in which a dark bandcorresponding to a wavelength of5 x 10-5 cm is found. Calculate the orderof the interference band. (Ans. : 6) | 
| Answer» lamba= 5×10^-5cm=5000 angstrom | |