A) Manish and Revathi are making lemon Juice for themselves. Manish wants cold juice, so he adds sugar to cold water. Revathi adds the same amount of sugar but the water is at room temperature. In which case will the sugar dissolves faster and why? 1. Name the separation technique that can be used to separate sand from pebbles.
2. Explain the principle behind this separation method.​

the mass of the cathode increases because ions from the solution get reduced to atoms and become part of the cathode.

explanation:

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on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.