What is the wavelength of microwave radiation that has an energy of 3.54×10-28 kJ/photon?
Wavelength = ??
m
Microwave radiation falls in the wavelength region of 1.00×10-3 to 1.00 meters.?
2020-08-04 12:01 am
回答 (2)
2020-08-04 12:14 am
Energy per photon, E = 3.54 × 10⁻²⁸ × 10³ J = 3.54 × 10⁻²⁵ J
Planck constant, h = 6.626 × 10⁻³⁴ J s
Speed of light, c = 3.00 × 10⁸ m/s
E = hc/λ
Then, λ = hc/E
Wavelength, λ
= (6.626 × 10⁻³⁴) × (3.00 × 10⁸) / (3.54 × 10⁻²⁵) m
= 0.562 m
Planck constant, h = 6.626 × 10⁻³⁴ J s
Speed of light, c = 3.00 × 10⁸ m/s
E = hc/λ
Then, λ = hc/E
Wavelength, λ
= (6.626 × 10⁻³⁴) × (3.00 × 10⁸) / (3.54 × 10⁻²⁵) m
= 0.562 m
2020-08-04 12:22 am
3.54x10^-28 kJ = 3.54x10^-25 J --> E= h*c/wl --> wl = h*c/E = 6.62x10^-34 J-s*3x10^8 m/s/ 3.54x10^-25 J
wl = 0.561 m
wl = 0.561 m
收錄日期: 2021-04-18 18:36:17
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20200803160116AAfHHZz