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Assignment2
Homework
Question | Answer |
---|---|
Refraction is the bending of a wave as it crosses the boundary between two media at where | an angle |
water travels what is deeper water than in shallow water | faster |
the wave is moving _______ to the wave front | pendicularwhen sound is traveling through air of uneven temperatures |
light travels _________ in air | faster |
two expamles of refraction using light | swimming pool appears shallower, and a pencil in a glass of water appears bent |
when does sound refraction occur | uneven wind or when sound is traveling through air of uneven temperatures |
What causes mirage | by the refraction of light in Earth's atmosphere |
true/false: a mirage is not a "trick of the mind" | truethe separtion of light into a range of colors according to their frequenceies |
what is dispersion | the separtion of light into a range of colors according to their frequenceies |
each color frequencey has its own... | average speed |
To see a rainbow what needs to happen | the sun must be shining in part of the sky, and the water droplets in a cloud or in falling rain be in the opposite part of the sky |
shape of a rainbow in the sky(from an airplane) | a circle |
the inside the rain drop is both | refracted and reflected |
Total internal reflection occurs when | the angle of incidence is larger than the critical angle |
the critical angle is the angle of what | incidence (90) |