A person lives in a high-rise\nbuilding on the bank of a\nriver 50 m wide. Across the\nriver is a well lit tower of\nheight 40 m. When the\nperson, who is at a height of 10 m, looks through a polarizer\nat an appropriate angle at light of the tower reflecting from the\nriver surface, he notes that intensity of light coming from\ndistance X from his building is the least and this corresponds\nto the light coming from light bulbs at height ‘Y’ on the\ntower. The values of X and Y are respectively close to?

Ashish Shukla , 10 Years ago

Grade 12th Pass