जॉइन Examsbookउत्तर : 4. "falling of ultra violet rays on the white inner coating of the tube"
The electrical domestic tube light gives white fluorescent light because of5
प्र: The electrical domestic tube light gives white fluorescent light because of
- 1colision between molecules of filled gas under electric currentfalse
- 2heavy currentfalse
- 3vacuum inside the tubefalse
- 4falling of ultra violet rays on the white inner coating of the tubetrue
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उत्तर : 4. "falling of ultra violet rays on the white inner coating of the tube"
व्याख्या :
Answer: D) falling of ultra violet rays on the white inner coating of the tube Explanation: The ultraviolet rays have high frequency and shorter wavelength are converted to visible white light with lower frequency and greater wave length
समान प्रश्न
Since Nithya and Suganya exchange places, so Rita’s new position is the same as Monika’s earlier position. This position is 17th from the right and 10th from the left. Therefore Number of girls in the row = (16 + 1 + 9) = 26.