The angle between the first-order maximum and the central maximum for monochromatic light of 2300 nm is 27 degrees. Calculate the number of lines per centimeter on this grating.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.