NTPC CBT-2 Physics Quiz - 31

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Question 1:

Why does the sky appear perfect blue in the afternoon?

Question 2:

Remote sensing satellites are placed in which of the following orbits?

Question 3:

Which of the following is the poorest conductor of heat in comparison to other options?

Question 4:

Aqua-lung was invented by which of the following scientist?

Question 5:

What is the unit of work?