Question

if the angle of elevation of sun increses from 0° to 90° then the lenght of the shadow of tower decreases is the statement true justify

Answer 1

yes it is true because if the angle increases then a point of time will come when the shadow has a minimum height or distance. for example consider a tower of height 'h'. and the sun is almost in a position lying along the same axis with the plane of the tower.here the angle is 90°so the shadow formed here has a maximum height.but when the angle is almost equal to 0 then the height of the shadow of the tower will have a minimum or negligible height.