Question

Since 1 u = 10-6 m
.. Size of the particle = 4.6 x 10-6 m
3. It takes 5 years for light to reach the earth from
a star. Express the distance of star from the
earth in (i) light year, (ii) km. Take speed of light
= 3 x 108 m sland 1 year = 3.153 x 107 s.​

Answer 1

Answer:

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