Need help please A ray of light goes from one transparent material into another,

Question

Need help please A ray of light goes from one transparent material into another, as shown in the figure. Wha^ conclude about the indices of refraction of these two materials? A convex lens has focal length/. If an object is located extremely far from the lens (at infinity), the image formed is located what distance from the lens? You are 1.8 m from a plane mirror, and you would like to take a picture of yourself in the mirror. You need to manually adjust the focus of the camera by dialing in the distance to what you are photographing. What distance do you dial in? A conductor is placed in a steady external electric field. Which of the following statements is not correct for this situation? Two uncharged metal spheres, #1 and #2, are mounted on insulating support rods. A third metal sphere carrying a positive charge, is then placed near #2. Now a copper wire is momentarily connected between # I and #2 and then removed. Finally, sphere #3 is removed. In this final state

Explanation / Answer

1) E. n2>n1

If the light passed through the medium it will be n1>n2

2) at f. The image is formed at the focal length f

3) C. 0.9m. The distance is the twice the distance to the mirror.Because the image is at the same distance behind the morror as you are infront

4)3 answers are there. A B and D

5) B

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