Showing posts with label ENGLISH. Show all posts
Showing posts with label ENGLISH. Show all posts

Monday, April 15, 2024

Host you own web project in that server


1. **Connect via SSH**: Use the `ssh` command to connect to your instance directly, assuming you've already set up your SSH key and know your EC2 instance's public IP address:

   ssh -i your_key.pem ubuntu@your_ec2_public_ip

   If prompted to confirm the connection, type `yes`.

2. **Install Apache**: Install Apache web server and update packages:

   sudo apt update

   sudo apt install apache2

3. **Switch to Root User**: Switch to the root user to gain administrative privileges:

   sudo su

4. **Navigate to Web Root**: Move to the directory where you want to host your web files (usually `/var/www/html`):

   cd /var/www/html

5. **Edit HTML File**: Use a text editor like Nano or Vim to edit your HTML file:

   nano index.html

6. **Restart Apache**: After making changes, restart Apache for the changes to take effect:

    systemctl restart apache2

7.Now, your web project should be hosted on your EC2 instance. You can access it through your EC2's public IP address.

 

Thursday, March 25, 2021

Bihar Board 12th Result 2021 Released ( download Bihar Board 2021 result )


Short information

 Bihar School Examination Board (BSEB) has announced the BSEB 12th result directly on the official website. Students can visit onlinebseb.in to check their result in online. The direct link to check Bihar Board 12th result 2021 is given below.

download   12th result       server 1       server 2    server 3  server 4 official website 


Tuesday, January 12, 2021

Bihar board class 12th mark distribution on new pattern 2022


Download pdf  https://drive.google.com/file/d/1fLdu8L5rLy-u0oz50REQH2FXOPiI2VRC/view?usp=sharing 

Model paper Mathematics  https://drive.google.com/file/d/1uEA0ILZVPjyp5782WZoCMHGvydwlhNZT/view?usp=sharing

 


Unit-Wise Distribution of Marks (new) 2021

 

 

UNIT NAME

Objective

(  1  )

Short

(  2  )

Long

(  5  )

Marks

( Avg. )

UNIT:1 Relation and Function

12 to 16

2 to 4

1

25

UNIT:2 Algebra

12 to 16

3 to 5

1

36

UNIT:3 Calculus

45 to 50

13 to 16

3

76

UNIT:4 Vector and 3D-Geometry

15 to 20

5 to 7

1

40

UNIT:5 Linear-Programming Problem

1 to 3

1 to 2

0 to 1

08

UNIT:6 Probability

5 to 7

1 to 3

0 to 1

15

TOTAL

100

30

8

200

Attempt

50

15

4

100


Saturday, December 19, 2020

Jee Mains 2021 examinations dates

 The Department of Higher Education, Ministry of Education, Government of India has entrusted the responsibility of conducting Joint Entrance Examination (JEE Main) to the NTA from 2019 onwards.


The Joint Entrance Examination (JEE (Main) comprises of two papers. The Paper1 is conducted for admission to Undergraduate Engineering Programs (B.E/B. Tech) at NITs, IIITs, other Centrally Funded Technical Institutions (CFTIs), Institutions/Universities funded/recognized by participating State Governments, as well as an eligibility test for JEE (Advanced), which is conducted for admission to IITs.

The JEE (Main)-2021 is being conducted in multiple Sessions (February/March/April/May) for admissions in the next academic session. The candidates will thus benefit in the following ways:-

(1) This will give multiple opportunities to the candidates to improve their scores in the examination if they are not able to give their best in the one attempt.

(2) This will reduce the chances of dropping a year and droppers would not have to waste a full year.

(3) In case a candidate has Board Examination in a particular month, or is unable to appear due to COVID-19, the candidate can choose a different month to take the JEE (Main)-2021.

(4) A candidate need not appear in all the four Sessions. However, if candidate appears in more than one Session then his/her best of the 2021 NTA Scores will be considered for preparation of Merit List/ Ranking.

(5) Keeping in mind various decisions taken by various Boards across the country regarding amendments in the syllabus, NTA has decided that the question paper will contain 90 questions, in which the candidate will have to attempt a total of 75 questions. The choice will be given in Section B (numerical), which will not have any negative marking.


New Scheme of Examination:

PAPER

SUBJECTS

Section A

Section B

Question Paper design

TIMING OF THE EXAMINATION(IST)

First Shift

Second Shift

B.E./B.Tech. (Paper 1)

Mathematics

20*

10*

*Each Subject will have two sections. Section A will be of Multiple-Choice Questions (MCQs) and Section B will contain Questions whose answers are to be filled in as a numerical value. In Section B, candidates have to attempt any five questions out of 10. There will be no negative marking for Section B.

9:00 a.m.

to 12:00 p.m.

3:00 p.m. to

6:00 p.m.

Physics

20*

10

Chemistry

20*

10

Total

90

B. Arch. (Paper 2A)

Mathematics – Part I

20*

10*

*Part -1 will have two sections. Section A will be of Multiple-Choice Questions (MCQs) and Section B will contain Questions whose answers are to be filled in as a numerical value. In Section B, candidates have to attempt any five questions out of 10. There will be no negative marking for Section B.

9:00 a.m.

to    12:00p.m.

3:00 p.m. to

6:00 p.m.

Aptitude Test – Part II

50

-

Drawing Test – Part III

02

-

Total

82

B. Planning (Paper 2B)

Mathematics – Part I

20*

10*

* Part -1 will have two sections. Section A will be of Multiple-Choice Questions (MCQs) and Section B will contain Questions whose answers are to be filled in as a numerical value. In Section B, candidates have to attempt any five questions out of 10. There will be no negative marking for Section B.

 

3:00 p.m. to 6:00 p.m.

Aptitude Test – Part II

50

-

Planning Based Questions - Part III

25

-

Total

105

*Each Subject will have two sections. Section A will be of Multiple-Choice Questions (MCQs) and Section B will contain Questions whose answers are to be filled in as a numerical value. In Section B, candidates have to attempt any five questions out of 10. There will be no negative marking for Section B.

Mode of Examination: JEE (Main) 2021 Examination will be held in “Computer Based Test” (CBT) Mode only, except that the Drawing Test for B.Arch. will be held in “Pen & Paper” (offline) mode.

Medium of the Question Papers: Drawing from the National Education Policy (NEP), the JEE (Main) 2021 will be conducted in Assamese, Bengali, Kannada, Malayalam, Marathi, Odia, Punjabi, Tamil, Telugu, Urdu in addition to Hindi, English and Gujarati.

The subsequent dates of examination are as follows:

Dates of Examinations:

 

Session-1 (Februay-2021)

23,24,25 & 26 February 2021

Session-2 (March-2021)

15,16,17,& 18 March 2021

Session-3 (April-2021)

27,28,29 & 30 April 2021

Session-4 (May-2021)

24,25,26 27 & 28 May 2021


Important Instructions:

a.        Candidates can apply for JEE (Main) 2021 through “Online” mode only between 16.12.2020 (Wednesday) to 16.01.2021 (Saturday)

b.        The fees can be paid online upto 17.01.2021 (Sunday).

c.         Fees can be paid for all 4 Session(s) (February/March/April/May) at the same time. However, it can be taken forward to another Session. In case a candidate does not want to appear in the Session for which fee has already been paid, it will be refunded by NTA, provided the request is received during the application process of the Session from which the candidate wants to withdraw.

d.        A single Confirmation Page will be generated for all the session(s), the candidate applies for.

e.         Candidates has option to apply for one Session and more than one Session together and pay fee accordingly. Application window will be re-opened briefly immediately after the declaration of result of February/ March & April Session.

f.         If any candidate could not appy for session-1, he/she can apply for the next Session(s) once the portal opens, after declaration of result.

g.        Only one application is to be submitted by a candidate for one session or more than one session or for all session(s) together. Multiple application forms submitted by a candidate for the same session will not be accepted at any cost.

h.        Candidates, who desire to appear in JEE (Main) –2021, may see the detailed Information Bulletin available on the websites:

https://jeemain.nta.nic.in/ /www.nta.ac.in.


Wednesday, September 2, 2020

Imperfection of solid



When Cat-ion and Anion regular arrange in crystal than some ion dislocate their position or missing their crystal that indicate imperfection of solid.
             Some ion (Cat-ion or anion) arrange at 0 degree Kelvin which is called ideal solid.
·         There are different type of defect


.    1. Impurity defect :-  Impurity defects are foreign atoms that replace some of the atoms making up the solid or that squeeze into the interstices; they are important in the electrical behavior of semiconductors, which are materials used in computer chips and other electronic devices.
    2.  Stoichiometric defect  :-    The compounds in which the number of positive and negative ions are exactly in the ratios indicated by their chemical formulae are called stoichiometric compounds. The defects do not disturb the stoichiometry (the ratio of numbers of positive and negative ions) are called stoichiometric defects.


    Schottky defect:-  when  atom or ion regular arrange in crystal then same number of cation and anion missing their crystal which is called schottky defect.



   Density decreases in schottky defect. AgBr source frenkel defect and schottky defect.

Frenkel defect:-  When atom or ion arrange in crystal then one cation dislocated their position but present in crystal that is called frenkel defect.



    Vacancy defect:- In this defect when atom or ion regular arrange in crystal then sometime iron are vacant their position and electron occupy their space which is called vacancy defect.
·         Vacancy defect develop in presence of heat.
·         In vacancy defect F-center are develop.


      Interstitial defect:-  Interstitials defects are a variety of crystallographic defects where atoms assume a normally unoccupied site in the crystal structure. In interstitial defects, two or more atoms may share one lattice site, thereby increasing its total energy.

    3.     Non-stoichiometry defect:-  
     Metal Excess defect:- when metal and nonmetal regular arrange in crystal then number of metal is higher than number of non-metal that is fold metal excess defect.
                                             

    Metal Deficiency defect:- Metal and nonmetal regular range in crystal then number of metal is lower than number of non-metal, which is called metal deficiency defect.




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