Which statement is correct about a flashlight battery? a. light energy and heat energy are created by it. b. the total energy of the system decreases. c. its chemical energy is transformed into light energy. d. chemical energy is destroyed when the flashlight stops working.

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.