defnition Flashcards
what is scattering of light ?0
the spreading of light in all direction through water molecules dust paritcles and the molecules of the gases present in the atmosphere. This phenomenon is called scattering of light
what is accomdation of eye?
Accommodation is the ability of the eye to change the focal length of the lens by changing the curvature of the eye lens.
what is reflection?
the bouncing back of light in the same medium on striking the surface of any object
what is rafraction?
The phenomenon of change in the direction of light when it passes from one transparent medium to another is called refraction
what is OHM’S law?
Ohm’s law states that the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions and temperatures remain constant.
what is electric circuit ?
a closed path of wires and electrical components which allows a current through it on the application of potential difference between two points in the path
what is electric current?
Electric current is basically the flow or charge of the electric charge in motion in a conductor. It is said to exist when there is a net flow of charge through the region.(The SI unit of current is Ampere.)
why don’t planet twinkle?
