Practice Image Formation By Lenses (9.3.4) - Light

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8 questions

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6 sample questions

Question 1.
What is the main function of a convex lens?
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Look at the shape and properties of the lens.
Question 2.
What type of image is formed by a concave lens?
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Consider what 'concave' means.
3Question 3.
What type of image does a convex lens produce when the object is placed at infinity?
- Virtual
- Real
- Inverted
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Consider the basics of how the lens works.
4Question 4.
True or False: Concave lenses can produce real images.
- True
- False
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Recall the definitions and characteristics of each lens.
Question 5.
A real object is placed 30 cm from a convex lens with a focal length of 10 cm. Find the image position and size.
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Substitute values carefully and solve.
Question 6.
You have a concave lens with a focal length of -20 cm. If an object is placed 40 cm from the lens, what are the image characteristics?
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Remember that the image will always be virtual!

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