An aircraft is flying at a height of ' 
' above the ground and at a speed of ' 
. The maximum angle subtended at a ground observation point by the aircraft after time 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Let 
is the distance travelled by the aircraft with speed 
after time 
.
We get 
Thus speed of the aircraft 
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