Q1 a cd has a playing time of 531 minutes while the music, Ask an Expert

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Q1. A CD has a playing time of 53.1 minutes. While the music starts, the CD is rotating at an angular speed of 498 revolutions per minute (rpm). At the end of the music, the CD is rotating at 200 rpm. Find out the magnitude of the average angular acceleration of the CD

Q2. A screen is placed 42.7 cm from a single slit that is illuminated with light of wavelength 677 nm. If the distance between the first and third minima in the diffraction pattern is 3.45 mm, what is the width of the slit?

Respond in units of mm

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