Physics
Which of the following statements is true when we see ''rainbow' ?

We face sun and raindrops
The sky remains clear and the sun is at lower position in the sky
In light rainfall, we face Sun
The Sun remains behind us and we face raindrops

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Physics
In the process of magnetisation of a bar

The entire bulk of the bar gets magnetised
Only some parts of the outer layers of the bar get magnetised
Only the ends of the bar get magnetised
Only the surface of the bar gets magnetised

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Physics
To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor

Should be made of a good conductor but can be of any shape
Should be made of a good conductor like copper with sharp-pointed edges
Can be of any shape
Should be in the form of a vertical rod

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