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Calculating the thickness of a glass at a bright fringe, angular deviation of an image and the Brewster's angle for light travelling from air to glass.

1. A wedge-shaped sliver of glass viewed from above is illuminated with 436-nm light. The sharp edge is dark. What is the thickness of the glass at the fifth bright fringe?

2. What is the Brewster's angle for light travelling from air to glass?

a) 48.9° b) 41.1° c) 33.3° d) 56.7° e) none of above

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