Let the bigger sphere be sphere 1 and the let the smaller sphere be sphere 2. Rest of the answer is in the picture.
Answer:
This represents radiation in ultra-violet region .
Explanation:
Energy of the orbit where n = 3 is given as follows

= -1.511 eV
Energy of the orbit where n = 1 is given as follows

= 13.6 eV
Difference of [tex]E_3 and [tex]E_1 = - 1.511+ 13.6
= 12.089 eV.
The wavelength of light having this energy in nm is given by the expression as follows
Wavelength in nm = 1244 / energy in eV
= 1244 / 12.089
= 102.90 nm
This represents radiation in ultra-violet region .
B.a homogeneous mixture
A solution is a homogeneous mixture of two or more substances. The amount of solute that can be dissolved in solvent is called its solubility.
First you get the data:
- Velocity (v) = 3m/s
- Distance (d) = ??
- Time (t) = 2hr
Time conversion: hours to seconds:

We calculate the distance, using the formula:



Answer: I travel to 21600 meters.