Match List I with List II.
List I | List II | ||
| A | Taenia | I | Nephridia |
| B | Paramoecium | II | Contractile vacuole |
| C | Periplaneta | III | Flame cells |
| D | Pheretima | IV | Urecose gland |
Choose the correct answer from the options given below:
The difference in energy levels of an electron at two excited levels is 13.75 eV. If it makes a transition from the higher energy level to the lower energy level then what will be the wavelength of the emitted radiation?
Given:
$ h = 6.6 \times 10^{-34} \, \text{m}^2 \, \text{kg} \, \text{s}^{-1} $, $ c = 3 \times 10^8 \, \text{ms}^{-1} $, $ 1 \, \text{eV} = 1.6 \times 10^{-19} \, \text{J} $