OnlineCBT Logo OnlineCBT

Chemistry · Structure of atom

हिन्दी

The frequency of electromagnetic radiation having a wavelength of \( 5800\text{ \AA} \) is approximately:

  1. A
    \( 3.00 \times 10^{8}\text{ s}^{-1} \)
  2. B
    \( 5.17 \times 10^{14}\text{ s}^{-1} \)
  3. C
    \( 1.72 \times 10^{4}\text{ cm}^{-1} \)
  4. D
    \( 7.50 \times 10^{14}\text{ s}^{-1} \)
View Answer & Solution

Correct answer · Option B

\( 5.17 \times 10^{14}\text{ s}^{-1} \)

Explanation

Using frequency \( \nu = \frac{c}{\lambda} = \frac{3 \times 10^8\text{ m s}^{-1}}{5800 \times 10^{-10}\text{ m}} = 5.17 \times 10^{14}\text{ s}^{-1} \).
Address Contact

+91 7877547686

E-mail

onlinecbtportal@gmail.com

Helpline Number

+91 7877547686


Click To Download
Get it on Google Play

ऐप डाउनलोड करने
के लिए Google Play पर
उपलब्ध है

WhatsApp Chat