Physics
The swing of a spinning cricket ball in air can be explained on the basis of

Sudden change in wind direction.
Bernoulli's theorem.
Buoyancy of air.
Turbulence caused by wind.

ANSWER DOWNLOAD EXAMIANS APP

Physics
When a piece of pure silicon is doped with aluminium, then

The doped silicon piece will become n-type
The resistivity of the doped silicon piece will increase
The doped silicon piece will become p-type
The conductivity of the doped silicon piece will remain the same

ANSWER DOWNLOAD EXAMIANS APP