Light Travels at 3 $\times$ 10⁸ M/s,and the Size of a Proton Is About 1

question 78

Multiple Choice

Light travels at 3 $\times$ 10⁸ m/s,and the size of a proton is about 1 fm.Calculate the order of magnitude for the time taken for light to pass across a proton.

• A)10^-7 s
• B)10^-8 s
• C)10^-22 s
• D)10^-23 s
• E)10²³ s

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