MCQ
If wavelength of a wave is $\lambda = 6000Å.$ Then wave number will be
- A$166 \times {10^3}m^{-1}$
- B$16.6 \times {10^{ - 1}}m^{-1}$
- ✓$1.66 \times {10^6}m^{-1}$
- D$1.66 \times {10^7}m^{-1}$
✓
Answer
Correct option: C.
$1.66 \times {10^6}m^{-1}$
c
(c) $\bar n = \frac{1}{\lambda } = \frac{1}{{6000 \times {{10}^{ - 10}}}}$
(c) $\bar n = \frac{1}{\lambda } = \frac{1}{{6000 \times {{10}^{ - 10}}}}$
$ = 1.66 \times {10^6}{m^{ - 1}}$
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