Which diagram below illustrates the path of a light ray as it travels from a given point X in air to another given point Y in glass? |
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(a) |
(b) |
(c) |
(d) |
Which diagram below illustrates the path of a light ray as it travels from a given point X in air to another given point Y in glass? |
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(a) |
(b) |
(c) |
(d) |