Question 19 1 pts The speed of light in substance A is 2.8x10^8 m/s. The speed of light in substance B is 2.7x10^8 m/s.

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Question 19 1 Pts The Speed Of Light In Substance A Is 2 8x10 8 M S The Speed Of Light In Substance B Is 2 7x10 8 M S 1 (48.52 KiB) Viewed 14 times

Question 19 1 pts The speed of light in substance A is 2.8x10^8 m/s. The speed of light in substance B is 2.7x10^8 m/s. When passing from substance A to substance B light will be Totally internally reflected Polarized Refracted away from the normal Refracted towards the normal Question 20 1 pts 512 grams of tritium, a radioactive isotope of hydrogen, are placed in a container.49.2 years later there is found to be 32 grams left. What is the half life of tritium? 6.15 years 12.3 years 24.6 years 49.2 years