The instrument to measure pressure difference is MCQ with Answer and Explanation
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Question #1
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Kepler's Second Law of planetary motion (Law of Areas) is a direct consequence of the conservation of:
Correct Answer: Option B
Explanation:
Kepler's Second Law states that the line joining a planet to the Sun sweeps out equal areas in equal intervals of time (areal velocity is constant). Because the gravitational force is a central force (acting strictly along the radius vector), it exerts zero torque on the planet. When net torque is zero, angular momentum is strictly conserved.
Kepler's Second Law states that the line joining a planet to the Sun sweeps out equal areas in equal intervals of time (areal velocity is constant). Because the gravitational force is a central force (acting strictly along the radius vector), it exerts zero torque on the planet. When net torque is zero, angular momentum is strictly conserved.
Question #2
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The instrument that measures atmospheric pressure is
Question #3
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The working of a rocket is based on
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