After an eye examination, you put some eyedrops on your sensitive eyes. the cornea (the front part of the eye) has an index of refraction of 1.38, while the eyedrops have a refractive index of 1.45. after you put in the drops, your friends notice that your eyes look red, because red light of wavelength 600 nm has been reinforced in the reflected light.

a) what is the minimum thickness of the film of eyedrops on your cornea?
t = nm

b) will any other wavelengths of visible light be reinforced in the reflected light?

c) will any be cancelled?

d) suppose you had contact lenses, so that the eyedrops went on them instead of on your corneas. if the refractive index of the lens material is 1.50 and the layer of eyedrops has the same thickness as in part a, what wavelengths of visible light will be reinforced?

e) what wavelengths will be cancelled?

Your answer is 1.5 hope i  

The figure is missing but we can answer anyway.the correct answer is "releasing the string". in fact, when the person is holding the bow and the arrow, the kinetic energy of the arrow is still zero (because the arrow is not moving). the moment the arrow is released, it acquires a velocity v, so its kinetic energy will become different from zero: where m is the mass of the arrow and v its velocity.  all the other options, instead, do not increase the kinetic energy of the system: -  pulling farther back on the string : this will just increase the elastic potential energy of the system-  holding the arrow higher: this will increase the gravitational potential energy of the system (which is given by u=mgh, where h is the height above the ground)-  decreasing the mass of the arrow: this will decrease the gravitational potential energy of the system (which is given by u=mgh, where m is the mass)