Consider the following three statements: for any electromagnetic radiation, the product of the wavelength and the frequency is a constant. if a source of light has a wavelength of 3.0 å, its frequency is 1.0×10¹⁸ hz. the speed of ultraviolet light is greater than the speed of microwave radiation. which of these three statements is or are true? (a) only one statement is true. (b) statements (i) and (ii) are true. (c) statements (i) and (iii) are true. (d) statements (ii) and (iii) are true. (e) all three statements are true.

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

An atom that has gained or lost electrons is called an _

1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light