Calculate the wave number and frequency of yellow radiation having wavelength of 5800A^0
Answers
Answer: Wave number = 1.72*10^6 m^-1
Frequency = 5.17 * 10^14 Hz
Explanation:
Wave number = 1 / wavelength
= 1 / 5800A
= 1 / 5800*10^-10m [ since 1A = 10^-10m]
= 0.000172 * 10^10
Wave number = 1.72*10^6 m^-1
Frequency = speed of light / wavelength
= 3*10^8 / 5800 * 10^-10
= 3/58 * 10^16
= 0.0517 * 10^16
Frequency = 5.17 * 10^14 Hz
Hope this helps you! :-)
Answer:
ν = 5.17 × 10¹⁴ s⁻¹
V = 1.724 × 10⁶
Explanation:
Wavelength = 5800 A° = 5800× 10⁻¹⁰m - λ
speed of light = 3 × 10⁸ m/s - c
frequency - ν
wave number - V
Speed of light = wavelength × frequency
c = λν
ν = c / λ
ν = 3 × 10⁸ / 5800× 10⁻¹⁰
ν = 5.17 × 10¹⁴ s⁻¹
wave number - V = 1 / λ
= 1 / 5800 × 10⁻¹⁰
= 0.0001315 × 10¹⁰
= 1.724 × 10⁶