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Lens Properties and Image Formation

Lens Properties and Image Formation

Assessment

Interactive Video

Physics, Science

9th - 12th Grade

Practice Problem

Hard

Created by

Olivia Brooks

FREE Resource

The video tutorial explains how to solve problems involving convergent and divergent lenses. It covers the use of the thin lens equation to find image distance, discusses the properties of real and virtual images, and calculates magnification. The tutorial also explains how to determine the power of a lens in diopters and illustrates the concepts with ray diagrams. The video concludes with a problem involving a divergent lens, highlighting the differences in image formation compared to a convergent lens.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the height of the object placed in front of the convergent lens?

5 cm

6 cm

7 cm

8 cm

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the focal length of the convergent lens used in the problem?

4 cm

5 cm

6 cm

7 cm

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the image distance (di) calculated for the convergent lens?

14 cm

12 cm

10 cm

6 cm

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of image is formed when the image distance is positive?

Virtual

Real

Enlarged

Reduced

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the magnification of the image formed by the convergent lens?

1

0

2

-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the magnification is negative, what is the orientation of the image?

Reduced

Enlarged

Inverted

Upright

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the power of the lens in diopters?

14.5 D

12.5 D

16.7 D

10.5 D

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