Question:
Match List - I with List - II (Wavelength Solar Spectrum).
List - I List - II A. Ultraviolet Region
B. Visible Region
C. Infrared Region
D. Wavelength above 2500 nm I. 9%
II. 45%
III. 46%
IV. Negligible
Match List - I with List - II (Wavelength Solar Spectrum).
| List - I | List - II |
|---|---|
| A. Ultraviolet Region B. Visible Region C. Infrared Region D. Wavelength above 2500 nm | I. 9% II. 45% III. 46% IV. Negligible |
Show Hint
Standard solar radiation spectrum distribution:
\[
\begin{aligned}
\text{Ultraviolet} &\approx 9%
\text{Visible} &\approx 45%
\text{Infrared} &\approx 46%
\end{aligned}
\]
These percentages are extremely important for solar energy and renewable energy examinations.
Updated On: May 22, 2026
- A-I, B-II, C-III, D-IV
- A-I, B-II, C-IV, D-III
- A-II, B-I, C-III, D-IV
- A-II, B-I, C-IV, D-III
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Solar radiation reaching the Earth consists of ultraviolet, visible, and infrared radiation. Each region contributes a specific percentage of the total solar energy: Ultraviolet → 9%, Visible → 45%, Infrared → 46%, radiation above 2500 nm is negligible.
| Step | Explanation |
|---|---|
| 1. Ultraviolet Region | Short wavelength, high photon energy, ~9% of solar radiation → A → I |
| 2. Visible Region | Detectable by human eye, major portion of solar energy, ~45% → B → II |
| 3. Infrared Region | Longer wavelength, thermal energy, ~46% → C → III |
| 4. Wavelength above 2500 nm | Extremely small contribution → negligible → D → IV |
| 5. Final Matching | A-I, B-II, C-III, D-IV → Correct option: (A) |
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