#Cathode rays when obstructed by metal cause emission of | Explore Tumblr posts and blogs

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Physics (Set: 01)10000 + MCQ GK Question and Answer with detailed Explanation

Q.1) A light year is a measure of :(1) Speed(2) Velocity(3) Distance(4) Time Show Answer Correct Answer – (3) Distance Explanation: A light-year is a unit of length equal to just under 10 trillion kilometres (or about 6 trillion miles). As defined by the International Astronomical Union (TAU), a light-year is the distance that light travels in a vacuum in one Julian year. Note that the…

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