The color red has the longest wavelengths of any color. according to the , that which has longer wavelengths is .

The Doppler effect refers to the modification in wavelength or frequency of a wave in association with an observer who is moving in comparison to the source of the wave.  

The color red exhibits the longest wavelengths of any color. According to the Doppler's effect, that which has longer wavelengths moves away from the Earth, while which exhibits shorter wavelengths move towards the Earth.  

Hence, the given blanks can be filled with Doppler's effect and moving away.  

to figure the total magnification of an image that you are viewing through the microscope is really quite simple. to get the total magnification take the power of the objective (4x, 10x, 40x) and multiply by the power of the eyepiece, (usually 10x)