College Physics 10th Edition by Raymond Serway,Chris Vuille

تمرين 72

The transmitting antenna on a submarine is 5.00 m above the water when the ship surfaces. The captain wishes to transmit a message to a receiver on a 90.0-m-tall cliffat the ocean shore. If the signal is to be completely polarized by reflection offthe ocean surface, how far must the ship be from the shore