Answer:
Magnetic flux through the loop is 0.25 Weber.
Step-by-step explanation:
It is given that,
Magnetic field, B = 0.2 T
Radius of circular loop, r = 0.5 m
Magnetic field is directed perpendicular to the plane of a circular loop,

Using the formula of magnetic flux as :





So, the magnitude of the magnetic flux through the loop is 0.25 Weber. Hence, this is the required solution.