Aray of light travels from air to water. which statement about the angle of incidence, reflection and refraction is true? a. the angle of reflection will always equal the angle of incidence, and the angle of refraction will be less than the angle of incidence. b. the angle of reflection will always equal the angle of incidence, and the angle of refraction will be greater than the angle of incidence. c. the angle of reflection be less than the angle of incidence, and the angle of refraction will be less than the angle of incidence. d. the angle of reflection be less than the angle of incidence, and the angle of refraction will be greater than the angle of incidence.

The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.

In this question, the light ray passes from air to water, an optically denser medium.

Imagine drawing a line to representing the boundary between two mediums. Now imagine drawing a line perpendicular to that boundary line marking where the light ray intersects the boundary line. This second line is called the normal. Whenever a light ray passes into a denser medium with a nonzero angle of incidence, the ray will bend towards the normal, making the angle of refraction smaller than the angle of incidence.

Choice A

The correct answer is the greater the mass, the greater the force. The hockey puck will move a greater distance in crash 1 than in crash 2.

Explanation:

The force with which a body moves depends on the acceleration it has and its mass. Since the bodies are solid, inelastic shocks are produced, in which all the energy is transmitted from one body to another. In case 1, the impacting body has a greater mass, producing a greater force on the hockey puck, causing it to travel a greater distance. In the second case, being massless, there will be a crash where the body that impacts will be still and the hockey puck will move less than in case 1.

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