Physics
A tank filled partially with a liquid is subjected to a uniform horizontal acceleration. Which of the following is true for the surface of liquid in the tank?

None
The surface of the liquid remains horizontal
The liquid surface falls down on the direction of motion and rises up on the back side of the tank
The liquid surface falls down only at the center of the tank

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Physics
Pressure Cooker cooks faster because

Boiling point decreases with rise of pressure
It cooks the food at low pressure
Higher temperature is attained for cooking
The material of the cooker is a good conductor

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