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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A beam of width t is incident at 45 on an air-water boundary. The width of the beam in water is …………………………………………….

A beam of width t is incident at 45 on an air-water boundary. The width of the beam in water is …………………………………………….

A beam of width t is incident at 45 on an air-water boundary. The width of the beam in water is ....................................................