Multiple choice

An electron is a negatively charged particle having negligible mass. Some of the important properties of an electron are: (a) Charge on an electron, e = 1.602 x 10-19 C (b) Mass of an electron, m = 9.107 x 10-36 kg (c) Radius of electron, r = 1.9 x 10-15 cm (d) Ratio of e/m of an electron = 1.759 x 1011 C/kg Which of the above properties is/are correct?

  1. Only (a) and (b)

  2. Only (a) and (d)

  3. Only (c) and (b)

  4. All of these

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ratio of e/m of an electron = 1.759 x 10 11 C/kg.

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