NCERT Exercise 10.4 - Wave Optics
Question: In a Young’s double-slit experiment, the slits are separated by 0.28 mm and the screen is placed 1.4 m away. The distance between the central bright fringe and the fourth bright fringe is measured to be 1.2 cm. Determine the wavelength of light used in the experiment.
Answer: **NCERT answer:** 1 2 10 0 28 10 4 14 . . . – 2 – 3 m = 600 nm
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