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Posted by on Sunday, January 8, 2012 at 12:05pm.

On a sunny day, a 1.20 m long vertical stick in air casts a shadow 1.20 m long. If the same stick is held vertically and touching the flat bottom of a pool of salt water (n=1.71) half the height of the stick, how long is the shadow on the floor of the pool?

  • Physics - , Sunday, January 8, 2012 at 2:42pm

    See my later answer to the same question.

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