Light behaves like _____ both a wave and a particle, because of its dual nature 2.a particle 3.a wave 4.a wave at times, and a particle at other times
Ole Roemer 2.Armand Fizeau 3.Isaac Newton 4.Christian Huygens 5.Albert Einstein
Two mirrors are at right angles to one another. If an object is placed near the mirrors, what is the largest number of images that would be seen in the mirrors?
In the movies, you sometimes see an actor looking in a mirror and you can see his face in the mirror. During the filming of this scene, what does the actor see in the mirror? His face. 2.Your face. 3.The director's face. 4.The movie camera. 5.Impossible to determine.
Light passes from a material with index of refraction 1.3 into one with index of refraction 1.2. Compared to the incident ray, the refracted ray _____ bends toward the normal 2.is undeflected 3.bends away from the normal
As light from the Sun enters the atmosphere, it refracts due to the small difference between the speeds of light in air and in vacuum. The optical length of the day is defined as the time interval between the instant when the top of the Sun is just visibly observed above the horizon to the instant at which the top of the Sun just disappears below the horizon. The geometric length of the day is defined as the time interval between the instant when a geometric straight line drawn from the observer to the top of the Sun just clears the horizon to the instant at which this line just dips below the horizon. Which is longer? The optical length of a day. 2.The geometric length of a day.
Crown glass. 2.Acrylic. 3.Fused quartz. 4.Impossible to determine.
clockwise 2.counterclockwise
violet 2.green 3.red 4.impossible to determine