conven lens 3. As D increases, D , and H/H 4. Place the lens on the meter stick

Question

conven lens 3. As D increases, D , and H/H 4. Place the lens on the meter stick at the position of your average f value. Can an image be located on the screen.? Look into the lens at the light source. Can an image be located? Why? 5. Remove the light source from the meter stick and take the lens, the stick and the screen outside. Locate the image of the sun. DO NOT USE THE LENS TO LOOK DIRECTLY AT THE SUN i sun 6. How does D of the sun's image compare to your experimental value of f? 7. Obtain the accepted value of f for your lens and calculate the percent error of your 51 Physics II

Explanation / Answer

3) decreases, decreases.

When the object distance increases the image distance decreases and magnification also decreases. When the object is at infinite distance image will be formed at focal point.

4) No. Because, when the object is placed at focal point image is formed at infinite distance.

so, we can not get a sharp image on the screen.

5) Di_sun = f (focal length of the lens)

Because, when object is at infinite distance image is formed at focal point.

6) They are approximately same.

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