NCERT Solutions for Class 8 Maths Chapter 12
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Exercise 12.1 and Exercise 12.2 in English Medium or Hindi Medium updated for new academic year 2020-21 based on latest CBSE Syllabus for new session.
Download Prashnavali 12.1 and Prashnavali 12.2 in Hindi Medium to study online or take PDF format to free download. NCERT Solutions 2020-21 are in the updated format for the new academic session 2020-2021 based on new CBSE Curriculum. All the students whoever using NCERT Books 2020-21 and following CBSE Syllabus 2020-2021 can use these solutions for their exams.
NCERT Solutions for Class 8 Maths Chapter 12
| Class: | 8 |
| Subject: | Maths – गणित |
| Chapter 12: | Exponents and Powers |
Class 8 Maths Chapter 12 all Exercises Solution
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Class 8 Maths Chapter 12 Solutions
Class 8 Maths Chapter 12 Exponents and Powers all exercises in English Medium as well as Hindi Medium are given to download in PDF format. For any inconvenience regarding website, please call us, we will immediately solve the problem.
8 Maths Chapter 12 Solutions in English Medium
8 Maths Chapter 12 Solutions in Hindi Medium
Class 8 Maths Exercise 12.1 Solutions in Video
Class 8 Maths Exercise 12.2 Solutions in Video
Important Terms about Class 8 Maths Chapter 12
In a stack there are 5 books each of thickness 20 mm and 5 paper sheets each of thickness 0.016 mm. What is the total thickness of the stack?
Thickness of one book = 20 mm
Thickness of 5 books = 20 x 5 = 100 mm
Thickness of one paper = 0.016 mm
Thickness of 5 papers = 0.016 x 5 = 0.08 mm
Total thickness of a stack = 100 + 0.08
= 100.08 mm
= 1.0008 x 10^2 mm
The charge of an electron is 0.000,000,000,000,000,000,16 coulomb. Express this number in standard form.
Charge of an electron is 0.00000000000000000016 coulombs.
= 0.00000000000000000016 x [10^19/10^19] coulombs
= 1.6 x 10^(-19) coulombs
पौधों की कोशिकाओं की माप 0.00001275 m है। कथन में जो संख्या प्रकट हो रही है उसे मानक रूप में व्यक्त कीजिए।
पौधों की कोशिकाओं की माप
= 0.00001275 m
= 0.00001275 x [10^5/10^5] m
1.275 x 10^-5 m
5.8 x 10^12 को सामान्य रूप में व्यक्त कीजिए।
5.8 x 10^12
= 5.8 x 1000000000000
= 5800000000000
In Chapter 12 Exponents and Powers, we will go through the questions based rules of addition, subtraction of exponents, converting power notation in to expanded form or expanded form to exponents notations. Exercise 12.2 consists of questions related to expression in scientific form to decimal and decimal to scientific form. This chapter is easier as compared to other one but it is important as per Algebraic Expressions point of view.
More about घातांक
इस पाठ में हम सीखेंगे कि संख्याओं को विस्तारित घातांक रूप में कैसे लिखते हैं और घटकों का उपयोग करके किसी संख्या को विस्तारित रूप में लिखना। घातांक ऋणात्मक हो या धनात्मक, घातांक के नियमों के अनुसार प्रश्नों को सरलतम रूप में लिखना। छोटी संख्याओं को घातांक का प्रयोग कर के मानक रूप में व्यक्त करना। बहुत छोटी तथा बहुत बड़ी संख्याओं को मानक रूप में लिखने पर उनकी तुलना आसानी से की जा सकती है। इस विधि से हम बड़ी बड़ी संख्याओं, जैसे सूर्य का व्यास, पृथ्वी का व्यास, सूर्य की पृथ्वी की दूरी, आदि को आसानी से व्यक्त कर सकते हैं।
