Question

It takes 8 minute for light to reach from the sun to the earth surface. If the speed of light
is taken to be 3X108 m/s, find the distance from the sun to the earth.

Answer 1

Answer:

If we suspend a ebonite rod (charged) and now we bring a charged glass rod near it. What will happen and why?

Answer 2

Answer:

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Explanation:

Answer

Correct option is

C

10

8

km

Time t=8 min=480 sec

Speed of light c=3×10

8

ms

−1

Distance=t×c=1.44×10

11

m=1.44×10

8

km

So order of magnitude os distance is 10

8

km