The pathway of light into the eyes goes from the cornea through the lens where it gets focus on the retina and optic nerves picks up the signal where the brain interprets the image. The eye is the organ of sight.
When light rays from objects hits the human eye, it goes through the cornea first. In the cornea the image begins to form and using the pupil located in it the amount of light that enters is regulated.
From the cornea, light goes into the lens. The lens allows for the rays to focus on the retina.
The retina receives the rays and the image forms .
The molarity is a concentration unit which defined as the number of moles of solute divided by the number of liters of solution. So the molarity of the solution is 3/2=1.5 mol/L.
Wavelength = 434nm = 434 x 10⁻⁹m planck's constant = <span>h= 6.626 x 10 ⁻³⁴ J E =? by using the formula; E = hc /</span>λ value for c is 3 x 10⁸ m/s E = (6.626 x 10 ⁻³⁴ J)(3 x 10⁸ m/s) / 434 x 10⁻⁹m E = 1.9878 x 10⁻²⁵ / 434 x 10⁻⁹m E = 4.58 x 10⁻¹⁹ joules