Solar Radiation is incident on the surface of the Earth at an average of 1000 W/

Question

Solar Radiation is incident on the surface of the Earth at an average of 1000 W/m^2. This is measured on a surface which is perpendicular to the incoming light. Find the number of photons corresponding to UVB radiation of mean wavelength of 300 nm falling on an area 1 cm^2 Solar Radiation is incident on the surface of the Earth at an average of 1000 W/m^2. This is measured on a surface which is perpendicular to the incoming light. Find the number of photons corresponding to UVB radiation of mean wavelength of 300 nm falling on an area 1 cm^2

Explanation / Answer

E = hf

f = speed of light/wavelength = 3*10^8 / 300*10^-9
h = 6.62 * 10^-34

Therefore, E = hf

The min energy is 6.62*10^-19 J

Therefore, 1000*10^-4 / 6.62*10^-19 J = 1.51*10^17 photons.

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.