Optics

Concave means the lens "bends in' at its center compared to the outer edges of the lens.

Concave lenses have negative focal lengths True False

The lens equation provided in the instructions for this lab apply to all lenses regardless of their thickness. True False

If the object is far enough away from the lens, you can assume the focal length is just the image distance. True False

You are using a lens that creates a virtual image 11 cm in front of the lens. The object that the lens is aimed at is 37 cm away. What is the focal length of the lens? Answer in cm, but do not include units in your answer.

The focal length of a lens is the distance between the lens and the point along the lens' central axis where light rays do/would converge to a point. True False

Question 7 In a paragraph between 100 and 150 words explain. What did you Learn? What conclusion can you draw from the results of this lab assignment?

Question 1 Introduction: In a paragraph between 150 and 250 words explain what the theory behind this experiment was. If you are using external resources include the reference. You need to include any relevant formulas and explanation of each terms as well. You may use the rich formula tools imbedded here.

1. Hold a polarizing film in front of your eye and look at the fluorescent light in the lab. Is there any change in light intensity with and without the polarizing film in front of your eye? Why? 2. Rotate the polarizing film through 360 degrees when you are looking at the fluorescent light. Is there any change in light intensity due to the rotation? Why? 3. Hold two polarizing films together in front of your eye and look at the fluorescent light. Rotate one of the two films through 360 degrees. Is there any change in light intensity due to the rotation? Why?

Question 8 In one sentence compare the results of the experiment with your Hypothesis