2007-06-06 12:51:06 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
No. The only difference underwater is that there is refraction. Note though that refraction only affects lenses and not mirrors. You're referring to a mirror, so no, it's focal length will not be affected.
2007-06-06 12:55:43 · answer #1 · answered by kash 3 · 0⤊ 0⤋
Not if it's a mirror. The light will be traveling through a medium with only 1 index of refraction to and from the surface of the mirror.
Check with facilities maintenance before using shaving cream in the pool however............
2007-06-06 19:59:04 · answer #2 · answered by Steve 7 · 0⤊ 0⤋
No. The light path in reflection depends only on geometry - angle of reflection = -angle of incidence; refractive index of the medium has no effect. Lenses change their focal length in water because they depend on the change in index of refraction.
2007-06-06 23:40:48 · answer #3 · answered by injanier 7 · 0⤊ 0⤋
certainly. the focal point is according to your eye in air. in water, a differant media, the refraction index will change, and incedentially, will be somewhat distorted, depending on the properties of the water, i.e. purity, temperature, etc.
2007-06-06 19:58:17 · answer #4 · answered by Anonymous · 0⤊ 1⤋