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प्रश्न
Light passes through a closed cylindrical tube containing a gas. If the gas is gradually pumped out, the speed of light inside the tube will
पर्याय
increase
decrease
remain constant
first increase and then decrease
उत्तर
increase
If the gas is gradually pumped out, a vacuum will be created inside the closed cylindrical tube, and experimentally, light travels at the fastest speed in vacuum as compared to any other medium.
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संबंधित प्रश्न
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