A. 2.0 x 106 NC -1
B. 2. 5 x 106 NC -1
C. 1.0 x 107 NC -1
D. 4.0 x 107 NC -1

Correct Answer:

Option B – 2. 5 x 106 NC -1

Explanation

v = E x d, => E = v/d
i.e E 107/4 = 2.5 x 106 NC -1

SEE ALSO  An electron makes a transition from a certain energy level Ek to the ground state E0. If the frequency of emission is 8.0 x 10^14Hz. The energy emitted is?

Copyright warnings! Do not copy.