Correct Answer  Option 3 : M
^{1 }I
^{1 }L
^{2 }T
^{2}
The correct answer is option 3) i.e. M1 I1 L2 T2
CONCEPT:

Magnetic flux: Magnetic flux is the measure of the number of magnetic field lines passing through a given surface area.
The magnetic flux ϕ is given by:
ϕ = BAcosθ
Where B is the magnetic field strength, A is the area vector, and θ is the angle made by the area vector with respect to the magnetic field line.
EXPLANATION:
We know, ϕ = BAcosθ
For dimensional analysis, ϕ = BA
The dimensional formula of A (area) = L^{2} (1)
From lenz's law we know that F = q(v × B) ⇒ B = \(\frac{F}{qv}\)
Force, F = mass × acceleration ⇒ M^{1} L^{1}T^{2 }(2)
Charge, q = Current × time ⇒ I^{1} T^{1} (3)
Velocity, v ⇒ L^{1} T^{1} (4)
Substituting (1), (2), (3), and (4) in ϕ = BA
[ϕ] = \(\frac{F}{qv}\)A = \(\frac{M^1 L^1T^{2} }{(I^1T^1)(L^1T^{1})} L^2 \) = M1 I1 L2 T2