CBSE Class 10th Result 2021 Roll no. and Name Wise cbse.nic.in: You can check cbse result class 10 roll number wise, cbse result roll number wise, class 10 CBSE Class 10th Result 2021, CBSE Class 10th Name Wise Result, CBSE Class 10th 2021 Result Date, CBSE Class 10th Zone Wise Result 2021, Steps to check your […]

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## CBSE Class 10th English Marking Scheme 2021 Blueprint/Weightage

Check here the latest CBSE Class 10th English Marking Scheme 2021. CBSE high school students can view all the information on marking scheme of English class 10th cbse 2021 in this post. Central Board of Secondary Education has recently released the latest CBSE Class 10th English Syllabus 2020-21 of all subject along with the cbse […]

## CBSE Class 10 Computer Sample Paper 2021 pdf Download

CBSE students can now download the latest CBSE Class 10 Computer Sample Paper 2021 pdf Download. Here we are informing the students that Central Board of Secondary Education have recently released the new syllabus for all the subjects. All the sample papers provided here are based on the CBSE latest 10th syllabus. These sample papers […]

## CBSE Class 11th Syllabus 2021 For Science Stream Download Pdf

CBSE Class 11th Syllabus 2021 For Science Stream Download Pdf: Get acquainted with the syllabus CBSE Class 11th Syllabus 2021 For Science Stream Download Pdf. In this page, you will get CBSE Class eleventh schedule 2020 Science stream Syllabus pdf, and up-and-comer/understudies who are pressing together their 11th with science stream, they would now be […]

## CBSE Class 10th Social Science Sample Paper 2021 Pdf Important Questions

CBSE Class 10th Social Science Sample Paper 2021: Most of us finds Social Science difficult to remember, and we agree too, remembering so many dates, events happened, mappings, fundamental rights, about constitution and many more is not that easy. Some times you have to mug up things, which again sometimes create chaos in our minds. […]

## CBSE 10th Compartment Form 2021 Application Form Improvement Form

Central Board of Secondary Education releases the CBSE 10th Compartment Form 2021 Application Form Improvement Form on its official website every year in the month of July after the declaration of the final exam results. Recently CBSE have released the final result of both the class 10th and 12th. It is expected that soon CBSE […]

## CBSE Class 10th Changed Syllabus 2021 Exam Syllabus All Subjects

CBSE Class 10th Changed Syllabus 2021 Exam Syllabus All Subjects: CBSE class 10th changed exam pattern 2020-21, CBSE class 10th revised syllabus 2020-21, CBSE class 10th revised maths syllabus 2020-21, CBSE Class 10th Changed Syllabus 2021-all subjects, Latest syllabus of CBSE class 10th 2020-21, Download revised syllabus of CBSE class 10th 2020-21. We hope everyone […]

## CBSE Class 10th Maths Syllabus 2021 Important Topics Included

CBSE Class 10th Maths Syllabus 2021 Important Topics Included: CBSE class 10th maths syllabus 2020-21, CBSE class 10th maths syllabus 2021 with latest blueprints, CBSE class 10th maths syllabus download pdf online, click here to download CBSE class 10th maths syllabus 2020-21, CBSE class 10th maths syllabus with latest marking scheme. CBSE class 10th board […]

## CBSE Class 10 hindi blueprint 2021 Hindi Marking scheme Chapter Wise

CBSE Class 10 hindi blueprint 2021 Hindi Marking scheme Chapter Wise: CBSE class 10th latest hindi blueprints, CBSE class 10th latest hindi marking scheme, CBSE class 10th chapter wise blueprints 2021, CBSE class 10th Hindi course-A blueprints 2021, download latest CBSE class 10th hindi syllabus with blueprints,CBSE class 10th Hindi course-B blueprints 2021, click here to […]

## NCERT 12 Physics Ray Optics And Optical Instruments Chapter 9 Exercise

Q.1. A small candle 2.5 cm in size is placed 27 cm in front of a concave mirror of radius of curvature 36 cm. At what distance form the mirror should a screen be placed in order of receive a sharp image ? Describe the nature and size of the image. If the candle is […]

## CBSE 10 Computer Marking Scheme 2021 Blueprint Board Exam Important Chapter

Central Board of Secondary Education has recently released CBSE 10 Computer Marking Scheme 2021 Blueprint Board Exam Important Chapter on its official website. Students must be familiar with the changes that the board as introduced in class 10th and 12th syllabus for the academic year 2020-21. Here we have discussed the CBSE Class 10th Computer Application […]

## CBSE Class 10th Compartment Result 2021 All Subject Result

CBSE Class 10th Compartment Result 2021: Central Board of Secondary Education have announced the Class 10th 2020 Result on its official website cbse.nic.in. After this announcement CBSE releases the class 10th compartment exam date sheet 2021 for those students who failed in their final examination or wish to improve their scores in particular subjects. All […]

## CBSE Class 10th Hindi Syllabus 2021 Important Questions For Board Exam

DownloadCBSE Class 10th Hindi Syllabus 2021 from here. Students can check out the details like Class 10th Hindi Important Questions, Class 10 Hindi course A Syllabus 2021, Class 10 Hindi Course B Syllabus 2021 and easily download cbse class 10 hindi syllabus 2020-21 pdf from this article. Central Board of Secondary Education have recently announced […]

## CBSE 10 Science Syllabus 2021 Board Exam Download Full PDF

CBSE 10 Science Syllabus 2021 : Central Board of Secondary Education have implemented new changes in latest class 10th syllabus of all subjects. The authority have taken a step to shorten the syllabus for classes 10th, 11th and 12th due to the Covid-19 situation and nationwide lockdown. Here we are providing students necessary details of ncert […]

## CBSE Class 10th Maths Syllabus 2021 Important Topics Included

CBSE Class 10th Mathematics Syllabus for the session 2020-21 including important topics is available here. Students can check out all the details regarding latest Class 10th Maths Syllabus with all the changes that Central Board of Secondary Education have implemented this year. If you are looking forward to score good marks in the upcoming board […]

## CBSE Class 10 Examination Form 2021 Board Exam Fill Online

CBSE Class 10 Examination Form 2021: Every year large number of students appear for CBSE Class 10th Board Examination. Central Board of Secondary Education releases an online exam application form for the students who are going to sit for board exams for the session 2020-21. CBSE Class 10th Examination Form 2021 is released on the […]

## NCERT 12 Chemistry General Principles and Processes Of Isolation of Elements Chapter 6 Exercise 2

Q.6.1. Which of the ores mentioned in Table 6.1 page 6/2 can be concentrated by magnetic separation method ? Ans. Ores which are magnetic in nature can be separated from the non-magnetic gangue particles by magnetic separation. For example, ores of iron such as haematite (haematite (Fe2O3), magnetite ( FeCO3) and iron pyrites(FeS3) being magnetic […]

## NCERT 12 Chemistry General Principles and Processes Of Isolation of Elements Chapter 6 Exercise 1

Q.6.1. Suggest a condition under which magnesium could reduce alumina. Ans. The two redox reactions are : Q.6.2. Although thermodynamically feasible, in practice, magnesium metal is not used for the reduction of alumina in the metallurgy of aluminium. Why? Ans. Below the temperature (1623 K), corresponding to the point of intersection of Al2 O3 and […]

## NCERT 12 Maths Determinant Chapter 4 – Exercise 4.1

## NCERT 12 Maths Matrices Chapter 3 – Exercise 3.4

Now, in the above equation, we can see all the elements are zero in the second row of the matrix on the LHS. Therefore, A-1 does not exist. Note: Suppose A = IA, after applying the elementary transformation, if any row or column of a matrix on LHS is zero, then A-1 does not exist. […]

## NCERT 12 Maths Matrices Chapter 3 – Exercise 3.3

Directions (Q. No. 11 and 12) Choose the correct answer in the following questions: 11. If A, B are symmetric matrices of same order, then AB-BA is a (i) Skew-symmetric matrix (ii) Symmetric matrix (iii) Zero matrix (iv) Identity matrix Sol. Given, a and B are symmetric matrices → A’ = A and B’ = […]

## NCERT 12 Maths Matrices Chapter 3 – Exercise 3.2

Note: If two matrices have different orders then we can neither add nor subtract the matrices but we can multiply the matrices either the orders are same or number of columns of first matrix is equal to the number of rows of second matrix. By definition of equality of matrix as the given matrices are […]

## NCERT 12 Maths Matrices Chapter 3 – Exercise 3.1

Sol. (i) In the given matrix, the number of rows is 3 and the number of columns is 4. Therefore, the order of the matrix is 3 × 4. (ii) Since, the order of the matrix is 3 × 4, so there are 3 × 4 = 12 elements in it. 2. If the matrix […]

## NCERT Solutions for Class 12 – All Subjects

NCERT Solutions for Class 12 – All Subjects, and if you want to include all subject in terms of Science, Arts/humanities or Commerce. Then for NCERT Solutions for All subjects like, NCERT Solutions for Class 12 Chemistry, NCERT Solutions for Class 12 Biology, NCERT Solutions for Class 12 Chemistry, NCERT Solutions for class 12 Maths. All […]

## NCERT 12 Maths Inverse Trigonometric Function Chapter 2 – Exercise 2.2

## NCERT Solutions for Class 12 Physics – All Chapter

NCERT Solutions for Class 12 Physics – All Chapter & Important Questions. As you know NCERT released new syllabus and exam pattern, so according to the new exam syllabus/ exam pattern, you will get each and every chapter with new exam pattern. NCERT Solutions for Class 12 Physics – All Chapter Electrostatic charges and fieldsElectrostatic […]

## NCERT 12 Physics Communication Chapter 15 Exercise

Q.1. Which of the following frequency/frequencies will be suitable for beyond the horizon communication using sky waves ? (a) 10 kHz (b) 10 MHz (c) 1 GHz (d) 1000 GHz Sol. Choice (b) is correct. This is because 10 kHz cannot be radiated due to large antenna size. 1 GHz and 1000 GHz will penetrate. […]

## NCERT 12 Physics Semiconductor Electronics Materials, Devices And Simple Circuits Chapter 14 Exercise

Q.1. In n- type which of the following statement is true: (a) Electrons are majority carriers and trivalent atoms are the dopants (b) Electrons are minority carriers and pentavalent atoms are the dopants (c) Holes are minority carriers and pentavalent atoms are the dopants (d) Holes are majority carries and trivalent atoms are the dopants […]

## NCERT 12 Physics Nuclei Chapter 13 Exercise

Q.1.(a) Two stable isotopes of 3Li6 and 3Li7 have respective abundances of 7.5 and 92.5 . These isotopes have masses 6.01512 u and 7.01600 u respectively. Find the atomic weight of lithium.(b) Boron has two stable isotopes 5B10. Their respective masses are 10.01294 u and 11.00931 u, and the atomic weight of boron is 10.811 […]

## NCERT 12 Physics Atoms Chapter 12 Exercise

Q.1. Choose the current alternative from the clues given at the end of each statement : (a) The size of the atom in Thomson’s model is ……. The atomic size in Rutherford’s modal (much greater than/no different from/much less than) (b) IN the ground state of………., electrons are in stable equilibrium, while in …….. electrons […]