Physics
For a body moving with non-uniform velocity and uniform acceleration

Velocity – Time graph is linear
Displacement – Time graph is linear
Velocity – Time graph is nonlinear
Displacement – Time graph is non-linear

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Physics
Mirage is due to:

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

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