Physics
A parallel-plate capacitor of capacitance C1 is made using two gold plates. Another parallel-plate capacitor of capacitance C2 is made using two aluminium plates with same plate separation, and all the four plates are of same area. If rg and ra are respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct?

C1>C2
C1pa = C2pg
C2>C1
C1 = C2

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Physics
Mirage is due to:

Magnetic disturbances in the atmosphere
Depletion of ozone layer in the atmosphere
Equal heating of different parts of the atmosphere
Unequal heating of different parts of the atmosphere

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