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Q1. If the distance between two slits is 0.031 mm and the distance to a screen is 2.50 m, find the spacing between the first- and second-order bright fringes for yellow light of 500 nm wavelength.

Q2. A student makes a simple generator by using a single square loop cm on each side. The loop is then rotated at a frequency of Hz in a magnetic field of T.

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