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Grade: 12
        

suppose u r told that the linear size of everything in the universe has been doubled overnight.can you test this statement by measuring sizes wid a metre stick?can u test it by using the fact that the speed of light is a universal constant and has nt changed??what will happen if all the clocks in the universe also start running at half the speed???
sourse: h c verma.....ques for short ans....!!##

7 years ago

Answers : (1)

Fawz Naim
37 Points
							

We can calculate the size of universe by assuming speed of light as a universal constant. If the size of the universe has become double then the light will travel a particular distance in double the time the light travelled when the size of universe was not changed.

7 years ago
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