QUESTION 1 points Save Answer If there are two materials with different densitie

Question

QUESTION 1 points Save Answer If there are two materials with different densities, which of the following statements is true? Light travels faster in the material with higher density Light travels faster in the material with lower density Light travels the same speed in both materials QUESTION 2 When a light ray traveling in a higher index of refraction material passes into a lower index of refraction material, the light ray Bends toward the direction perpendicular to the surface between the materials Travels in a straight line without changing direction O Bends away from the direction perpendicular to the surface between the materials QUESTION 3 1 points Save Answer You are standing 1 m directly in front of a flat mirror. Which of the following is true? O You are 2 m away from your image formed by the mirror You are 1 m away from your image formed by the mirror O You are 0 m away from your image formed by the mirror O You are infinitely far away from your image formed by the mirror You are between 1 and 2 m away from your image formed by the mirror

Explanation / Answer

Question 1

Here, density means optical density, light travels faster in a medium of lower optical density. Hence second option is correct.

Question 2

When a ray of light passes from higher index of refraction medium to lower one, it passes away from the normal drawn at the point of incidence, hence marked option is wrong. Correct option is third

Question 3

As in a flat mirror, image is formed at the same distance behind the mirror as the object is in front of the mirror. So the distance of image is 2 m from the person. So first option is correct.

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