http://phet.colorado.edu/sims/geometric-optics/geometric-optics_en.html click th

Question

http://phet.colorado.edu/sims/geometric-optics/geometric-optics_en.html
click the RUN NOW button to start the web simulations, set the radius of curvature to 1.2m, the refractive index to 1.75 and the diameter to 1.2 m

3. switch to "many rays". what happens to the rays that do not go through the lens?
4. now turn on the screen. this will give you a flashlight as the light source. leave the flashlight fixed for now. move the screen slowly from the extreme right hand side to the position of the lens. what happens to the light on the screen especially as you get close to the focus?
5. move the object (flashlight) closer to the lens. what happens to the image? when the flashlight is at the focal point, where is the image? make a drawing showing the rays.
6. what happens to the focal length of the lens if you increase the radius of curvature of the lens surfaces?
7. what happens to the focal length of the lens if you increase the refractive index?

Explanation / Answer

Why isn't this question answered yet?

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.