A projectile is fired with velocity u at angle 45° with horizontal. Its time of flight is (g = 10 m/s²) MCQ with Answer and Explanation
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Question #1
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Which thermodynamic process occurs at a constant volume?
Correct Answer: Option B
Explanation:
An isochoric process is a thermodynamic process in which the volume of the closed system remains constant (delta V = 0). Because there is no change in volume, the system does zero pressure-volume work (W = Pdelta V = 0). According to the first law of thermodynamics, any heat added goes entirely into increasing the internal energy. Isobaric is constant pressure; isothermal is constant temperature.
An isochoric process is a thermodynamic process in which the volume of the closed system remains constant (delta V = 0). Because there is no change in volume, the system does zero pressure-volume work (W = Pdelta V = 0). According to the first law of thermodynamics, any heat added goes entirely into increasing the internal energy. Isobaric is constant pressure; isothermal is constant temperature.
Question #2
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A hydraulic lift has area ratio of output to input piston 10:1. Force applied 50 N on input piston lifts weight of
Question #3
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EM wave: E and B fields are:
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