Which of the following statements about electromagnetic radiation is true? a. it transfers energy to objects in the path of the electromagnetic waves. b. it can be converted to other energy forms. c. it transports the energy of electromagnetic waves. d. all of the above

The correct answer is "all of the above".

Explanation:

Electromagnetic wave: the electric field and the magnetic field are perpendicular to the direction of the energy transportation. The electromagnetic radiation transports the energy of electromagnetic waves.

It travels in vacuum. It does not need any medium to travel. It travels with the speed of the light. It transfers energy to object in the path of the electromagnetic waves.

Electromagnetic waves are produced by vibration of the charged particles. The electromagnetic radiation can be converted to other energy forms. The radiation consists of photons which are the packets of energy. When the radiation of the particular frequency falls on the metal then it transfers the energy to the electrons. The emission of the electrons occurs.

Therefore, form the given options, the correct statement about the electromagnetic radiation is the option (d).

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.

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