1.

How many seconds are there in a light fermi?(a) 10-15(b) 3.0 × 108(c) 3.33 × 10-24(d) 3.3 × 10-7

Answer»

Correct answer is (c) 3.33 × 10-24

One light fermi is time taken by light to travel a distance of 1 fermi ie. 10-15m

1 light fermi = \(\frac{10^{-15}}{3×10^8}\) = 3.33 × 10-24s.



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