Q. 15.0( 5 Votes )
If the height of a vertical pole is equal to the length of its shadow on the ground, the angle of elevation of the sun is
In the figure let AB be the pole and BC is its shadow. Join A and C. We get a right-angled triangle ∆ABC. Angle of elevation of the sun is ∠ACB. Given that, AB = BC. We use trigonometric ratio tan taking AB as height and BC as base to find the angle ∠BCA.
since we know that tanθ is 1 whenever θ = 45°.
So, the correct option is (C).
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