The weather bureau determines the height of cloud layer by measuring the angle of
Channel: Doubtnut
Date: 2020-07-26

The weather bureau determines the height of cloud layer by measuring the angle of elevation to the point, where the light of a vertical beam is reflected by clouds. The angle is measured at any observation station sapeerated from the foot of the light beam by a base lline. If the base line is 500 m in length, what is the altiude of cloud layer observed at `41@` ?