Fill in a t/f answer for each statement below. if false, correct the statement to make it true.:
1. [ ] for reflection of light, the angle of reflection equals the angle of incidence.
2. [ ] the speed of light is the same in all optical mediums.
3. [ ] the frequency of a light ray is the same when the light travels from one medium to another.
4. [ ] the index of refraction indicates the ability of a medium to bend the light beam as refraction occurs.
5. [ ] when you see a fish in water from a boat, the fish is actually not at where you think it is.
6. [ ] total internal reflection can occur when light travels from vacuum to an optical medium with higher index of refraction.
7. [ ] the reason that a prism can produce a colorful spectrum from a white light source is that its index of refraction is a function of light frequency.
8. [ ] when a light beam of wavelength λ is incident on a slit of width d, the ray approximation is valid when λ ≈ d.
9. [ ] optical fibers rely on total internal reflection to prevent light lose at the surfaces of the fibers.

Explanation:

Let's answer these statements

.1) True. This is the law of reflection.

.2) False. The speed of light depends on the index of refraction n = c / v

           v = c / n

.3) True. The frequency creates a forced oscillation, whereby the atoms re-emit at the same incident frequency

.4) False. The index of refraction is a measure of the ratio of the speed of light in a vacuum and the material environment, the ability to change the trajectory is given by the law of refraction

.5) True. True due to the change in beam trajectory due to the law of refraction

.6 False. The phenomenon occurs when you pass from a medium with a higher index to one with a lower ratio, because the refracted beam separates from the normal

.7) True.

.8) False so that the lightning approach is valid Lam >> d,

.9) True.

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000