EVERYDAY SCIENCE

Detailed explanation-1: -A polarimeter is a scientific instrument used to determine the angle of rotation caused by an optically active material moving through polarized light. As the angle of rotation is defined, the degree by which the light is rotated. Basically, the angle of rotation is known as the angle observed.

Detailed explanation-2: -Optical isomers have the ability to rotate the plane polarized light. This property is often referred as Optical Activity. A beam of ordinary light consists of electromagnetic waves that oscillate in an infinite number of planes at right angles to the direction of light travel.

Detailed explanation-3: -Polarimetry is the measurement of optical rotation of substances by using a polarimeter. A polarimeter is an instrument which measures the angle of rotation by passing polarized light through an optically active (chiral) substance.

Detailed explanation-4: -The property of a compound being able to rotate the plane of polarization of plane-polarized light is called the optical activity, and a compound with such activity is labelled as optical active. A stereoisomer that is optical active is also called an optical isomer.

Detailed explanation-5: -Optical activity is the ability of a chiral molecule to rotate the plane of plane-polairsed light, measured using a polarimeter.