Laser is a potential energy source for inducing which type of reaction?

Explanation

The correct answer is D) Fusion. Laser technology can be used in fusion reactions, such as in inertial confinement fusion, where lasers provide the energy needed to heat and compress the fuel to initiate fusion. Option A) Radioactive is incorrect because radioactivity is a spontaneous process that does not require external energy. Option B) Fission is incorrect because fission reactions are typically initiated by neutrons. Option C) Ionization is incorrect because, although lasers can ionize substances, they are not primarily used as a source of energy to initiate chemical reactions.