Discussion 1. Select which statement is correct in describing the image formed by a thin lens of areal object placed in front of lens. a- if the lens is convex, the image will never be virtual. b- If the image is real, then it is also inverted. If the image is real, then it is also enlarged. C- d- All the previous statements are correct. 2. Convex lens has a focal length of 15 cm. An object is placed 20 cm from lens. How far from the lens in the image? 3. Humans can naturally see which of the following: a- gamma rays b- Visible rays c- Ultraviolet rays d- Infrared waves sics Laborstory 4.Complete the following table: Characteristics What is the shape of Converging lens Diverging lens the lens What happens to rays once they hit the lens

Discussion 1. Select which statement is correct in describing the image formed by a thin lens of areal object placed in front of lens. a- if the lens is convex, the image will never be virtual. b- If the image is real, then it is also inverted. If the image is real, then it is also enlarged. C- d- All the previous statements are correct. 2. Convex lens has a focal length of 15 cm. An object is placed 20 cm from lens. How far from the lens in the image? 3. Humans can naturally see which of the following: a- gamma rays b- Visible rays c- Ultraviolet rays d- Infrared waves sics Laborstory 4.Complete the following table: Characteristics What is the shape of Converging lens Diverging lens the lens What happens to rays once they hit the lens

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A positive lens has a focal length of 6cm. An object is located 18cm from the lens. a. how far from the lens is the image? b. is the image real or virtual, upright or inverted? c. trace three rays frin tge top if the object to confirm your results.
3. The drawing below shows three principle rays coming from the top of an object. One ray is parallel to the axis until it reaches the lens. A second ray emerges along a path as if it were coming from on focal point of the lens. A third ray is directed from the top of the object to the center of the lens. Draw the continuation of the rays on the right hand side of the lens, and locate the image. Is the image real or virtual? Object
2. An object is located 60.0 cm to the left of a concave mirror (with R = 30 cm). a) What is the focal length for this mirror? Include the correct sign (positive or negative). b) Use the mirror equation to find the location of the image. State whether the image is real or virtual. c) Use the magnification equation to find the magnification of the image. State whether the image upright or inverted, and magnified or diminished. d) Confirm your answer to part (b) by drawing a ray diagram on the figure to find where image is located (Use three rays). 1
This question and the next question are based on the following information. A candle flame is 2 cm tall and is placed +30 cm from a converging lens. the image is at +45 cm. What is the focal length of the lens? a. -90 cm b. 18 cm c. 90 cm d. -18 cm
A student performs the lab as described. Leaving the object and 10 cm lens in place, a student places the 5 cm lens 35 cm away from the 10 cm lens. a) Calculate the object distance for the 5 cm lens. b) Calculate the image distance from the 5 cm lens. c) Calculate the magnification of the 5 cm lens. d) Calculate the total magnification from both lenses. e) Calculate the expected final image height (from both lenses). f) Is the final image upright or inverted?
A doctor examines a mole on the patient with a 17.2 cm focal length magnifying glass held 11.2 cm from the mole. Describe the image the doctor sees. A.Real B. Virtual C. Inverted D. Upright E. Smaller than object F. Larger than object
An object is placed in front of a lens which forms an image of the object. Which answer is correct A) If the image is real, then it is also upright. B) If the image is real, then it is also inverted. C) If the image is virtual, the lens must be a diverging lens. D) If the lens is convex, the image cannot be virtual. E) If the image is virtual, then it is also inverted.
Problem 96. Indicate the single lens type (converging or diverging) and object position that will lead to the following kind of images. If no single lens system can produce the particular image indicate that this is so. A) real, upright, enlarged image. B) huge image at "infinity". C) real, enlarged, inverted image. D) tiny inverted image very near the focal point. E) real, reduced in size, inverted image. F) virtual, reduced in size, upright image. G) virtual, enlarged, upright image. H) real, inverted image that is the same size as the object. I) virtual, enlarged, inverted image. Problem 97. You are handed a converging lens and you have a ruler. Describe two different simple ways to determine the focal length of this lens. Each way should involve making only one measurement.
(9) Please don't write on a paper. I can't understand handwritten. Kathrine places a 6.95-cm tall candle a distance of 36.5 cm from a concave mirror. What is the height of the image when the focal length of the mirror is 50.0 cm? a. -135.14 cm b. 36.50 cm c. 25.72 cm d. 3.70 cm
4. An object is 2 meters from a thin lens with a focal length of 50 cm. Apply the thin-lens equation to calculate the image distance from the lens and magnification.
1. You place an object 70 cm in front of a lens. an image is formed at q = +105 cm. What is the magnitude of the focal length of the lens and is it converging or diverging. Select all that apply. A. 42 cm B. 87.5 cm C. 105 cm D. 210 cm E. Converging F. Diverging 2. You place an object a distance of 55 cm in front of a diverging lens with a focal length of magnitude 20 cm. Where will the image be formed (in cm) ? 3. You place an object 60 cm from a converging lens with a focal length magnitude of 80 cm. Where will the image be located (in cm) ? 4. All Diverging lenses make virtual images. (True/False)
The focal length of a lens a. Approaches zero as the index of refraction increases b. Does not depend on the index of refraction O c. Increases as the index of refraction increases d. Decreases as the index of refraction increases