A parallel plate capacitor of capacitance \( 90 \mathrm{pF} \) is connected to a battery of \( \...

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A parallel plate capacitor of capacitance \( 90 \mathrm{pF} \) is connected to a battery of \( \operatorname{emf} 20 \mathrm{~V} \). If a dielectric material of dielectric constant \( K=5 / 3 \) is inserted between the plates, the magnitude of the induced charge will be 
(a) \( 0.9 \mu \mathrm{C} \)
(b) \( 1.2 \mu \mathrm{C} \)
(c) \( 0.3 \mu \mathrm{C} \)
(d) \( 2.4 \mu \mathrm{C} \)
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