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The mass of proton and electron are

1.672 x 10-26 kg and 9.107 x 10-31 kg respectively
9.107 x 10-26 kg and 9.107 x 10-31 kg respectively
9.107 x 10-29 kg and 9.107 x 10-31 kg respectively
9.107 x 10-30 kg and 9.107 x 10-31 kg respectively

Correct Answer: 1.672 x 10-26 kg and 9.107 x 10-31 kg respectively

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