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प्रश्न
Name two sources of ultraviolet radiation.
State any one source of ultraviolet radiation.
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उत्तर
- Sun
- Electric arc
- Mercury lamp
- Halogen lamp
Notes
Students should refer to the answer according to their questions.
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संबंधित प्रश्न
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| Cell containing vacancy | K | L | M |
| Energy in keV | 69.5 | 11.3 | 2.3 |
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