A] The author of the novel 'The Grapes of Wrath' is Ayn Rand. B] The author of the novel 'The Fountainhead' is John Steinbeck. C] The author of the novel 'Ancillary Justice' is Ann Leckie.
Which of the statements given above are not correct?
A Sonar of a ship sends sounds waves of speed 1500 m/s. These waves are reflected back by the ocean floor in 5 seconds. Find the depth (in m) of the ocean floor.