.The first diffraction minimum due to single slit diffraction is ?, for a light of wave length 5000Å. If the width of the slit is 1×10-4cm, then the value of ? is a) 300 b) 450 c) 600 d) 150

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consider the figure of a single riveted lap joint as follows

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cyclic heat engine operates between. temperature of 30 C. What is the least rate of heat rejection per kW net output of an engine. source temperature of 800 C and sink

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