Explanation:
It is given that,
Wavelength, 
Wavelength, 
We need to find the frequencies from corresponding wavelengths. The frequency of the light is given by :
c is the speed of light
Frequency 1,

Frequency 2,

Hence, this is the required solution.
Answer:
Option D: 1.5in in front of the target
Explanation:
The object distance is
.
Because the surface is flat, the radius of curvature is infinity .
The incident index is
and the transmitted index is
.
The single interface equation is 
Substituting the quantities given in the problem,

The image distance is then 
Therefore, the coin falls
in front of the target
52m/s is the answer because before it was gonna accelerate it was 52 m/s
Answer: Because the hunter will try to aim at the fish, but the image of fish he sees is actually the apparent image of the fish at a location.
Heres an image to help
Hope this helps!
I think it's Barium sulfate, the soild and percipitate