Which of the following is true about the index of refraction? a) it is always equal to 1.00. b) it can be equal to 1.00 but it can also be less than 1.00. it is never greater than 1.00. c) it can be equal to 1.00 but it can also be greater than 1.00. it is never less than 1.00. d) it can never be equal to 1.00

Which of the following harmful chemicals are found in tobacco smoke? a. carbon monoxide b. carbon dioxide c. nicotine b. carbon dioxide d. both a and c

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?