The angle of elevation of the Sun when the length of the shadow of a pole is equal to its height is :
Answer: (3) 45 degree
For answer look in below diagram according to question,
tan A = BC/AB
tan A = H/H
tan A = tan 45
A = 45 degree.
Then, the value of the elevation of the sun when the length of the shadow of a pole is equal to its height is 45 degree.
Hence, the correct answer is option (3) 45 degree.