Here, as the charge is uniformly distributed in the sphere, we will consider s as an area of the sphere which is, s=4πr2 and r is radius of the gaussian surface shown in the figure above. From this, it can be seen that
1. Light Travelling from denser medium to less dense medium
2. Light Travelling from less dense medium to denser medium
Carbon and oxygen are two substances that are linked in one recycling process
Explanation:
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Heat does not rise or fall because it is an energy being transferred. It is the hot air which rises because colder air is denser than hotter air.
