JEE Main & Advanced
Physics
Wave Optics / तरंग प्रकाशिकी
Question Bank
Self Evaluation Test - Wave Optics
question_answer
A beam of light consisting of two wavelength \[6500\,\overset{o}{\mathop{A}}\,\] and \[5200\,\overset{o}{\mathop{A}}\,\]is used to obtain interference fringes in a young's double slit experiment. The distance between the slits is 2.0 mm and the distance between the plane of the slits and the screen is 120 cm. What is the least distance from the central maximum where the bright fringes due to both the wave length coincide?