2022
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Prakash
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Roshini
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Jagmag
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Surya
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Detailed explanation-1: -The Union Minister of Earth Sciences, Jitendra Singh, launched India’s first saline water lantern, known as “Roshni”. The initiative uses seawater to power light-emitting diode (LED) lamps.
Detailed explanation-2: -Union Minister of Earth Sciences, Jitendra Singh has launched India’s first saline water lantern, ‘Roshini’, which uses seawater to power Light Emitting Diode (LED) lamps.
Detailed explanation-3: -: water containing salt. especially : mineral water containing sodium chloride, sodium sulfate, and magnesium sulfate.
Detailed explanation-4: -The price of Rock Salt Lamps products is between ₹610 - ₹800 per Piece during Jan ‘22 - Dec ‘22. These are indicative values based on popular product prices.
Detailed explanation-5: -WaterLight works through ionisation. Electrical energy is produced when salt water electrolytes react with magnesium inside the device. As well as a portable light source, WaterLight also charges small devices through a USB port. In emergency situations, it can be powered by urine.