Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 4: Problem 2

When the Moon comes into the umbra and penumbra of the Earth, __________is formed.

Short Answer

Expert verified
Answer: A Lunar Eclipse is formed.

Step by step solution

01

Understanding Umbra and Penumbra

Umbra is the innermost and darkest part of a shadow, where the light source (the Sun) is completely obscured by the occluding body (the Earth). Penumbra is the lighter, outer part of a shadow, where the light source is only partially obscured.
02

Visualizing Moon, Earth, and Sun positions

When the Moon is positioned between the Earth and the Sun, the Moon casts its shadow on the Earth. However, in this case, the Moon is entering the Earth's shadow, which means that the Earth is positioned between the Moon and the Sun, casting its shadow on the Moon.
03

Identifying the formation

When the Moon passes through the Earth's umbra and penumbra, a Lunar Eclipse is formed. During a lunar eclipse, the Earth's shadow is cast onto the Moon, causing it to appear darker and sometimes reddish in color, which is often referred to as a "blood moon."
04

Final Answer

When the Moon comes into the umbra and penumbra of the Earth, a Lunar Eclipse is formed.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Match the entries given in column \(A\) with the appropriate ones in column \(B\). Column \(\mathbf{A}\) A. A plane mirror B. Virtual image formed by a concave mirror C. Reflection of light D. The Sun E. Real image F. Prism G. Image on the retina H. Velocity of light is maximum a. Luminous source b. Can be caught on a screen. c. Magnified d. Real e. Vacuum f. Image distance is equal to object distance. g. Dispersion h. Periscope

Write the mathematical expression to calculate the number of image formed by two plane mirrors placed at an angle ' \(\theta\) '

Why is the light from the moon called cool light and the light from the sun called hot light?

Describe ray of light, beam of light, parallel beam of light, converging beam of light and diverging beam of light.

Which of the following is (are) natural source(s) of light? (1) Planets (2) Glow worm (3) Stars (4) Both (2) and (3)
See all solutions

Recommended explanations on Physics Textbooks

Linear Momentum

Read Explanation

Thermodynamics

Read Explanation

Electricity and Magnetism

Read Explanation

Torque and Rotational Motion

Read Explanation

Mechanics and Materials

Read Explanation

Electricity

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free