Question
Which of the following is an alpha particle which is
emitted in radioactivity?Solution
Alpha particle consists of a helium atom having 2 electrons, 2 protons and 2 neutrons. Radioactive decay (also known as nuclear decay or radioactivity) is the process by which an unstable atomic nucleus loses energy by emitting radiation, such as an alpha particle, beta particle with neutrino. A material containing such unstable nuclei is considered radioactive Hence, option A is correct.
Which law is also called the law of inertia?
The S.I. unit of the electric flux is
Which one of the following is used to remove Astigmatism for a human eye?
The method of transfer of heat in liquid is
Temperature of the Sun is measured by___________
Who defined the law of gravitation?
Which color of light experiences the most bending when it passes through a prism and separates from white light?
Which atmospheric layer contains ozone layer?
Which of the following is the least penetrating power rays ?
Which of the following instruments is used to measure humidity?
Relevant for Exams:
