NDA 2021 Mathematics question
Not in JEE syllabus
The shadow of a tower is found to be metre longer, when the angle of elevation of the sun changes from 60° to 45°. If the height of the tower is m, then what is equal to?
Answer: (B)
Solution
Let the height be m. Length of shadow . At 45° the shadow is ; at 60° it is . So
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account