Question

the speed of light in a vacuum is about

12. Which of the following relationships is (are) correct? All of these are correct 13. The angle of called the critical angle. at which all light striking a surface is totally internally reflected is largest, incidence / smallest, incidence / largest, refraction / smallest, refraction 14. Which of the following statements is INCORRECT about the following illustration? Normal Line Medium 1 Incident Ray] Surface a. Medium 1 is denser than medium 2 b. Light travels faster through medium 1 than through medium 2 c. Light will have a shorter wavelength traveling in medium 2 than when in medium 1 d. Light is bent towards the normal when it enters medium 2 Retracted Ray Medium 2 reaction 15. When light passes from one medium to another, what effect does an increase in the angle of incidence have on the angle of refraction? a. Increasing the angle of incidence increases the angle of refraction b. Increasing the angle of incidence decreases the angle of refraction C. Increasing the angle of incidence decreases the angle of refraction only until the critical angle is reached d. Changing the angle of incidence does not affect the angle of refraction

Answer 1

largest, incidence medium i ù denser than medium 2 14)