JEE Main & Advanced
Physics
Wave Optics / तरंग प्रकाशिकी
Question Bank
Young's Double Slit Experiment and Biprism
question_answer
An oil flowing on water seems coloured due to interference. For observing this effect, the approximate thickness of the oil film should be [DPET 1987; JIPMER 1997; RPMT 2002, 04]