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1. calculate the velocity of light in mica if the critical angle for light (the smallest...

1. calculate the velocity of light in mica if the critical angle for light (the smallest angle for which light is internally reflected) emerging from mica is 45.6 degrees?

2. a diverging lenses of focal length exactly = 10cm is placed at 5.00 cm in front of a converging lens of focal length 50.0cm. A 2.0 cm tall flame is placed 22.5 cm away from the first lens, predict the final magnification of the flames image.

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