RADIOACTIVITYWhat is radioactivity?
Radioactivity is defined as the spontaneous disintegration of certain atomic nuclei. This disintegration is accompanied by the emission of alpha particles, beta particles, and gamma radiation. Disintegration of naturally occurring radioisotopes is called natural radioactivity.
RADIOACTIVE RAYS
An experiment to study the effect of electric […]
PHOTOELECTRIC EFFECT
What is photoelectric effect?
Photoelectric effect is the liberalisation of electrons from a metal surface exposed to any sort of electromagnetic radiation. This effect is a quantum process. Here radiation is regarded as a stream of photons each having an energy hv where […]
RADIATION
Radiation is the fastest mode of heat transmission in which the energy transfer from one point to another takes place in the form of electromagnetic waves. According to quantum theory, radiation travels in space in the form of energy packets called photons. The energy of photon is […]
WAVES
What are waves?
Waves can be simply defined as a condition that repeats itself with time and space. Electromagnetic waves, mechanical waves, heat waves, matter waves, fear waves etc all all examples of waves. It should be noted here that in the case of propagation of waves there is […]
Latest from Engineering Forums