What is the wavelength from the same source

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Q. A bicyclist of mass 75 kg ( including the bicycle) can coast down a 4.0 degree hill at a steady speed of 10 km/h. Pumping hard,the cyclist can descend the hill at a speed of 30 km/h. Usingthe same power, at what speed can the cyclist climb the samehill? Assume the force of friction is directly proportionalto the speed v; that is, Ffr = bv, where b isa constant.

Q. If the wavelength of a monochromatic source is 490 nm in vacuum, what is the wavelength from the same source when it passes through a liquid where the speed of light is 2.40 x 108 m/s? (c = 3.00 x 108 m/s)

Reference no: EM1347464

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