Hello!!!!

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Refraction through parallel slab = s=t(1-1/ μ )

s= shifting of object from slab

t=thickness of slab

μ =Refractive index of slab

F=10/2=5

Due to glass plate shift

s=t

(1-1/ μ )

=1.5

(1-2/3)

=0.5

New u=9.5cm

Using lens formula

1/v=1/f+1/u

1/v=1/5+1/-9.5

1/v=4.5/9.5*5

v=10.55cm

therefore,Shift is 0.55 cm away from the lens.

Hope it helps!!!!