Which statements are true?Select those that apply. A photon has spin angular momentum The photon has energy proportional to its frequency. All photons travel with the speed "c" or 3x108 m/s in a vacuum regardless of their energy Gamma "rays" or gamma particles, emitted by radioactive atoms, have mass Radio waves, such as those that carry FM music or television, are actually quanta or packets of energy, just like visible light

We are well known that electromagnetic radiation shows dual nature. The quanta for these radiations are called photons. These photons are massless particles. There are various regions of these electromagnetic radiations. Each travels at same speed in vacuum.Since the photons are bosons, they have characteristic spin. They have spin of -1 or +1. Since they have spin, photon has spin angular momentum. Statement 1 is true. The energy of photon is E=h×frequencyE∝frequency Hence statement 2 is true. All photons have same speed of 3×108m/s in vacuum of any energy. Hence statement 3 is true. Gamma rays are also electromagnetic radiation which means, they are photons and photons do not have mass. Hence statement 4 is false. The radio waves are also electromagnetic waves which means they are also photons travelling in space just as visible light. Hence statement 5 is true.

Answered: Which statements are true? Select…

		A photon has spin angular momentum
		The photon has energy proportional to its frequency.
		All photons travel with the speed "c" or 3x10⁸m/s in a vacuum regardless of their energy
		Gamma "rays" or gamma particles, emitted by radioactive atoms, have mass
		Radio waves, such as those that carry FM music or television, are actually quanta or packets of energy, just like visible light