Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

Primary Colors of Light and Retina Cones Quiz

10 Questions

1 Views

Primary Colors of Light and Retina Cones Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

If a 60-W incandescent bulb emits 90% thermal energy, how much thermal energy is emitted by the bulb each second?

20 W

50 W

45 W (correct)

40 W

What percentage of the energy emitted by an incandescent bulb is thermal energy?

90% (correct)

60%

80%

70%

Which type of light has a magnetic field that vibrates in only one direction?

Electric light

Unpolarized light

Transverse light

Linearly polarized light (correct)

What are the primary colors of light?

Red, green, and blue Signup and view all the answers

If you mixed equal amounts of red, green, and blue paint, what would be the result?

White paint Signup and view all the answers

What are pigments used for?

To change the color of other substances Signup and view all the answers

How can light be polarized using a filter?

By using a filter with parallel slits that only allows light waves with magnetic fields vibrating in the same direction to pass through Signup and view all the answers

What happens when multiple polarizing filters are used?

The amount of light transmitted depends on the orientation of the filters Signup and view all the answers

What is the purpose of polarizing sunglasses?

To block horizontally polarized light to reduce glare from reflected surfaces Signup and view all the answers

In what way does the orientation of polarizing filters affect the transmission of light?

When positioned at right angles, the light is blocked; when positioned in the same direction, the light can pass through Signup and view all the answers