1. Velocity of the electron in the first Bohr orbit? A) 2.18x108 cm/sec B) 2.18x109 m/sec C) Both A & B

1. Velocity of the electron in the first Bohr orbit? A) 2.18x108 cm/se

1.	1. Velocity of the electron in the first Bohr orbit? A) 2.18x108 cm/sec B) 2.18x109 m/sec C) Both A & B
Answer» tion:Ans) Option A is correct ANSWER Since, it is given that the velocity of the electron in FIRST orbit of H ATOM =2.18×106m/s, Z= 2, n= 4Since, it is given that the velocity of the electron in first orbit of H atom =2.18×106m/s, Z= 2, n= 4So, V3=(2.18×106)nZ=(2.18×106)42=137×23×108=274c or 275c