MCQ
If wavelength for a wave is `lambda $= 6000 \mathring A$,` then wave number will be ____________.
- A$16.6 \times 10^7 m^{-1}$
- B$166 \times 10^8 m^{-1}$
- C$1.66 \times 10^7 m^{-1}$
- ✓$1.66 \times 10^6 m^{-1}$
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| Column I | Column II | ||
| i. | Ecological isolation | a. | Sexually mature at different times of the year |
| ii. | Ethological isolation | b. | Specific mating behaviours |
| iii. | Mechanical isolation | c. | Difference in structure of mating organs |
| iv. | Seasonal isolation | d. | Same geographic region but separate habitat |