The plates of a parallel plate capacitor are separated by distance d. Two slabs of different dielectric constants K1 and K2 with thicknesses 38d and 12d, respectively, are inserted into the capacitor. Due to this, the capacitance becomes two times larger than when there is nothing between the plates. If K1 = 1.25 K2, the value of K1 is:

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?