Question

Value of first bhor orbit ?​

Answer 1

Answer:

v = 2.18×106ms−1.

Hope it helps you!!!:)

Answer 2

Answer:

Velocity in Bohr's first orbit is given by mvr=

2π

nh

For Bohr's first orbit n=1

v=

2πmr

h

Radius r is given by, r

n

=0.53×10

−10

×n

2

m

For Bohr's first orbit n=1

r=0.53×10

−10

m

Frequency ν is given by ν=

2πr

v

=

4π

2

mr

2

h

Mass of electron m=9.1096×10

−31

kg

⇒ν=

4π

2

×9.1096×10

−31

×(0.53×10

−10

)

2

6.62×10

−34

=6530×10

12

Hz