"Lens in Life" Common Optical Instruments PPT Courseware 2

Description

"Lens in Life" Common Optical Instruments PPT Courseware 2

Do it

Equipment: Two paper tubes, convex lens, translucent paper

take a look

Please pick up the camera you made, face it outside the bright window, pull the paper tube, and change the distance between the lens and the translucent paper. What do you see?

think about it

When taking pictures, people move closer (away) from the lens. How to adjust the camera to get a clear image?

Open the door to memory

1. The lens of a camera is equivalent to a _ _ _ _ _ _ mirror. Use the same camera to take a full-length portrait of Xiaohua and then a bust portrait of him. Then the photographer should _ _ _ _ _ camera Length of the camera obscura (elongated, shortened, immobile.)

2. The projector as shown in the picture is a commonly used instrument in teaching. The light emitted by the object MN placed on the slide projector can form a clear image on the vertical screen after passing through the lens A and mirror B.

(1) It can be seen from the figure that lens A is a _ _ _ _ _ _ mirror, and mirror B is a _ _ _ _ _ _ mirror.

(2) Regarding the working principle of the projector, which of the following statements is correct ( )

A. When u < f, an upright enlarged virtual image is formed.

B. When f

C. When u>2f, it becomes an inverted and reduced real image.

D. When f

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For more information about the PPT courseware "Lens and Common Optical Instruments in Life", please click the Lens and Common Optical Instruments in Life ppt tag.

"Lens in Life" Lens and its Application PPT Courseware 8:

"Lens in Life" Lenses and Their Applications PPT Courseware 8 Learning Objectives 1. Know the imaging characteristics of cameras, projectors (slide projectors) and magnifying glasses. 2. Understand the main characteristics of real and virtual images of objects. Self-study 1. What are the main parts of a camera? it..

"Lens in Life" Common Optical Instruments PPT Courseware 3:

"Lens in Life" Common Optical Instruments PPT Courseware 3 Self-Study Materials 1. What are the main parts of a camera? What is its lens equivalent? What is the equivalent of film? What are the characteristics of the images of objects on film? 2． What are the main parts of a projector?

"Lens in Life" common optical instruments PPT courseware:

"Lens in Life" Common Optical Instruments PPT Courseware 1. Slide Projector and Transparency Film The pattern forms an enlarged and inverted real image through a convex lens. 2. Camera The image and object are on both sides of the lens, and the camera can form an inverted, reduced real image. 3. Telescope...

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Update Time: 2024-10-02

This template belongs to Physics courseware Beijing Normal University eighth grade physics volume 2 industry PPT template

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