## What happens when an electric dipole is placed in a non uniform electric field ?

♦ Scientific Reasoning : What happens when an electric dipole is placed in a non uniform electric field ? ♦

Ans : when an electric dipole is placed in a non uniform electric field ,it experiences some net force and some net torque .

## Why does Microwave oven heats up the food items containing water molecules most efficiently ?

♦ Scientific Reasoning : Why does Microwave oven heats up the food items containing water molecules most efficiently ? ♦

Ans. Microwave oven heats up the food items containing water molecules most efficiently because the frequency of microwaves matches the resonant frequency of water molecules .

## What is Inertial & Non-Inertial Reference frame ?

Ans: Inertial Reference Frame: A reference frame in which Newton’s first law is valid is called an inertial reference frame. An inertial frame is either at rest or moving with uniform velocity.

Non-Inertial Frame: An accelerated frame of reference is called a non-inertial frame. Objects in non-inertial frames do not obey Newton’s first law.