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speed of light in SI system is 3 into 10 to the power 8 metre per second in a new system unit of length is a kilometre and unit of time is second then speed of light in new system of unit is |
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Answer» 3×10⁵ km/s Explanation: Simply COVERT meters into KILOMETERS since the time is in the same units. therefore the answer you are looking for is, 3×10⁸/1000 = 3×10⁵ kms⁻¹ |
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