a. The speed of light in air is known to be 3.0 x 10 8 s m/s.
Question:
a. The speed of light in air is known to be 3.0 x 108s m/s.
Outline how you would use a refraction experiment to deduce the speed of light in glass. You may draw a diagram if it helps to clarify your answer.
b. A tsunami is a giant water wave. It may be caused by an earthquake below the ocean. Waves from a certain tsunami have a wavelength of 1.9 x 103 m and a speed of 240 m/s.
i. Calculate the frequency of the tsunami waves.
ii. The shock wave from the earthquake travels at 2.5 x 103 m/s.
The centre of the earthquake is 6.0 x 103 m from the coast of a country.
Calculate how much warning of the arrival of the tsunami at the coast is given by the earth tremor felt at the coast. Calculate the time in s.
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Answer a velocity 2108 ms bi frequency0126 Hz bii time 24 secs ...View the full answer
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