UPSC Exam > UPSC Videos > Science & Technology for UPSC CSE > What is Dark Matter & Dark Energy?
What is Dark Matter & Dark Energy? Video Lecture | Science & Technology for UPSC CSE
|
146 videos|358 docs|249 tests
|
FAQs on What is Dark Matter & Dark Energy? Video Lecture - Science & Technology for UPSC CSE
| 1. What is dark matter? |  |
Ans. Dark matter refers to a hypothetical form of matter that does not interact with light or other forms of electromagnetic radiation. It cannot be directly observed, hence the term "dark." However, its existence is inferred from its gravitational effects on visible matter and the structure of the universe.
| 2. What is dark energy? | |
Ans. Dark energy is a hypothetical form of energy that is believed to be responsible for the observed accelerated expansion of the universe. It is thought to permeate all of space and counteract the gravitational pull of matter, causing the universe to expand at an accelerating rate.
| 3. How is dark matter different from dark energy? | |
Ans. Dark matter and dark energy are distinct concepts. Dark matter refers to an invisible form of matter that exerts gravitational forces on visible matter, while dark energy is a form of energy that is believed to cause the acceleration of the universe's expansion. They have different effects on the structure and dynamics of the universe.
| 4. What evidence supports the existence of dark matter and dark energy? | |
Ans. The existence of dark matter is supported by various lines of evidence, including the rotational speeds of galaxies, gravitational lensing, and the distribution of matter in the universe. Dark energy, on the other hand, is inferred from observations of the cosmic microwave background radiation, supernovae, and the large-scale structure of the universe.
| 5. Why is dark matter and dark energy important in understanding the universe? | |
Ans. Dark matter and dark energy play crucial roles in our understanding of the universe's structure and evolution. Dark matter helps explain the observed motions of galaxies and the formation of large-scale structures, while dark energy accounts for the accelerated expansion of the universe. Understanding these phenomena is essential for comprehending the fundamental nature and fate of our universe.
Related Exams
About this Video
|
1K Views |
|
4.61/5 Rating |
|
Nov 21, 2024 Last updated |
Video Description: What is Dark Matter & Dark Energy? for UPSC 2024 is part of Science & Technology for UPSC CSE preparation.
The notes and questions for What is Dark Matter & Dark Energy? have been prepared according to the UPSC exam syllabus.
Information about What is Dark Matter & Dark Energy? covers all important topics for UPSC 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for What is Dark Matter & Dark Energy?.
Introduction of What is Dark Matter & Dark Energy? in English is available as part of our Science & Technology for UPSC CSE for UPSC & What is Dark Matter & Dark Energy? in
Hindi for Science & Technology for UPSC CSE course. Download more important topics related with notes, lectures and mock test series for
UPSC Exam by signing up for free.
Description
Video Lecture & Questions for What is Dark Matter & Dark Energy? Video Lecture | Science & Technology for UPSC CSE - UPSC full syllabus preparation | Free video for UPSC exam to prepare for Science & Technology for UPSC CSE.
Information about What is Dark Matter & Dark Energy?
Here you can find the meaning of What is Dark Matter & Dark Energy? defined & explained in the simplest way possible.
Besides explaining types of What is Dark Matter & Dark Energy? theory, EduRev gives you an ample number of questions to practice What is Dark Matter & Dark Energy? tests,
examples and also practice UPSC tests.
|
146 videos|358 docs|249 tests
|
|
Explore Courses for UPSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Sample Paper
,ppt
,Important questions
,Exam
,past year papers
,study material
,What is Dark Matter & Dark Energy? Video Lecture | Science & Technology for UPSC CSE
,mock tests for examination
,What is Dark Matter & Dark Energy? Video Lecture | Science & Technology for UPSC CSE
,Previous Year Questions with Solutions
,What is Dark Matter & Dark Energy? Video Lecture | Science & Technology for UPSC CSE
,shortcuts and tricks
,Extra Questions
,Semester Notes
,Summary
,Viva Questions
,practice quizzes
,video lectures
,Free
,Objective type Questions
,MCQs
;
Study What is Dark Matter & Dark Energy? on the App
Students of UPSC can study What is Dark Matter & Dark Energy? alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the What is Dark Matter & Dark Energy?,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of What is Dark Matter & Dark Energy? is prepared as per the latest UPSC syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup