Will give brainliest and 40 points!

a ray diagram is shown.

a tree is an object in front of a biconvex lens. there is a light ray parallel to the principal axis and is bent through f. there is a light ray straight through the center of the lens that is not bent. they intersect at a point on the image side of the lens that is farther than 2 f away from the lens. and very far from the principal axis and below it.
which letter represents the location of the image produced by the lens?

w
x
y
z

Z that is where both of the light rays intersect

i don't know that i agree with that but what's the question ?

scattering of light by tiny particles in air to produce the colors we see on sky, is dependent on the following factors:

(i) wavelength of light

(ii) size of the scattering particle  

(iii) distance traveled by light through the atmosphere.

according to rayleigh's law of scattering, the amount of scattering is inversely proportional to the fourth power of its wavelength. shorter the wavelength, greater is its scattering. hence violet/blue light is scattered more than red.

sun's light is a composite light ( visible light) with wavelengths in the range 400 nm (violet) to 700 nm (red). as sunlight passes through our atmosphere, the molecules of air scatter light according to their wavelengths. during sunrise and sunset, the sun's position is below the horizon. hence light from the sun travels a greater distance in the atmosphere when compared to its position a noon.

as sunlight enters the earth's atmosphere, blue light is scattered away and at the end of its journey in the sky, only red and orange wavelengths remain in the beam.

hence at sunrise and sunset, the sky appears reddish orange.