Find the total number of lines in a 2.90 wide diffraction, Ask an Expert

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Q1. Find the total number of lines in a 2.90 wide diffraction grating whose third-order spectrum has the 640 hydrogen- spectral line at an angular position of 39.0.

Q2. A straight wire (length=8.0 m) is bent to form the square. If the wire carries a current of 20 A, what is the magnitude of the magnetic field at the center of square?

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Reference No.:- M9172831

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