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Why radiation is emitted from radioactive substance?
Radiation is emitted from radioactive substances due to the spontaneous decay of unstable atomic nuclei. This decay process releases energy in the form of particles or electromagnetic waves, which are collectively referred to as radiation.
Absorption of what type of electromagnetic radiation results in electronic transitions?
Absorption of ultraviolet (UV) or visible light results in electronic transitions in atoms or molecules. This energy causes electrons to move to higher energy levels, leading to the absorption of specific wavelengths of light by the substance.
Is radiation an xray?
No, they can't. X-rays, at least the high energy ones, are a form of ionizing radiation. Ionizing radiation can break chemical bonds, but it cannot activate a substance. That is, X-rays cannot make a substance radioactive. Only particulate radiation can "induce" radioactivity, and that will happen according to the type of particulate radiation and the material being bombarded. Cosmic rays are a form of electromagnetic radiation even more energetic than X-rays, and even they cannot make a substance radioactive. Because X-rays cannot make a substance radioactive, they cannot make a site, a room, or an area of any kind radioactive.
Is Ionizing radiation powerful enough to strip electrons off of molecules forming ions?
Yes, ionizing radiation is powerful enough to remove electrons from atoms or molecules, resulting in the formation of ions. This process can lead to chemical changes in the substance being irradiated.
What type of substance is heated by radiation?
Any substance that absorbs the radiation is heated by it.
Which one of the following types of electromagnetic radiation causes certain substance to floursce?
Ultraviolet radiation causes certain substances to fluoresce by exciting electrons in the substance to higher energy levels, which are then released as visible light.
What type of radiation is emitted from iron when it is extremely hot?
Electromagnetic radiation in the form of thermal radiation is emitted as any substance, including iron, gets hot.
What type of radiation is emitted from hot iron when it is extremely hot?
Electromagnetic radiation in the form of thermal radiation is emitted as any substance, including iron, gets hot.
Why do you not need a substance for heat transfer?
Any object emits electromagnetic radiation (heat radiation, usually infrared), according to its temperature. This can travel in empty space.
Characteristic series of frequencies of electromagnetic radiation substances emit?
Each substance emits a unique characteristic series of frequencies of electromagnetic radiation when it is heated or excited. These frequencies correspond to specific energy transitions within the atoms or molecules of the substance. By studying these emission spectra, scientists can identify the composition of the substance and gain insights into its structure and properties.
Is heat an electromagnetic wave or mechanical wave?
Radiant heat is electromagnetic radiation. Thermal heat is the micro kinetic energy of the component atoms or molecules of a material substance. The "or" of the question can not be answered because there is no "or" involved.
What is an absorption coefficient?
An absorption coefficient is a measure of the absorption of electromagnetic radiation as it passes through a specific substance - calculated as the fraction of incident radiation absorbed by unit mass or unit thickness.
Why radiation is emitted from radioactive substance?
Radiation is emitted from radioactive substances due to the spontaneous decay of unstable atomic nuclei. This decay process releases energy in the form of particles or electromagnetic waves, which are collectively referred to as radiation.
Is heat light and electricity forms of energy?
Yes, heat, light, and electricity are all forms of energy. Heat energy is the result of the movement of atoms and molecules in a substance, light energy is electromagnetic radiation that we can see, and electricity is a form of energy resulting from the movement of electrons.
Absorption of what type of electromagnetic radiation results in electronic transitions?
Absorption of ultraviolet (UV) or visible light results in electronic transitions in atoms or molecules. This energy causes electrons to move to higher energy levels, leading to the absorption of specific wavelengths of light by the substance.
A substance can absorb heat energy by the process of?
There are three methods by which substances absorb heat. These are conduction, or heat transfer through contact, convection, or heat transfer through fluid motion, and radiation, or heat transfer through electromagnetic radiation.
Is electromagnetic energy the same as heat energy?
No, electromagnetic energy and heat energy are not the same. Electromagnetic energy refers to energy carried by electromagnetic waves such as light, while heat energy refers to the energy associated with the random motion of atoms and molecules within a substance. Heat can be transferred by electromagnetic radiation, but they are distinct forms of energy.
