CBSE ADDA

Navodaya Vidyalaya Samiti (NVS), an autonomous organization under the Ministry of Human Resource Development, Department of School Education & Literacy, Government of India, invites applications in the prescribed format (Annexure-I), from eligible Indian nationals for filling up of vacancies and drawing a panel of candidates for the posts of Trained Graduate Teachers DIRECT RECRUITMENT BASIS in the Jawahar Navodaya Vidyalayas located in various districts of the country . Website : “www.navodaya.nic.in” Last date for submission of applications is within 30 days from the date of publication of this  advertisement (advertisement published in Employment News dated 24-30 September, 2011). TRAINED GRADUATE TEACHERS SUBJECT-WISE POST CODES FOR FILLING UP THE APPLICATION FORM (REF. COL. NO. 01 & 05 OF APPLICATION FORM) TRAINED GRADUATE TEACHERS POST POST CODE HINDI 01 ENGLISH 02 MATHEMATICS 03 SOCIAL STUDIES 04

8th maths Sample paper term -1-2011

VERY SHORT QUESTIONS CARRYING 1 MARK EACH. 1. Out of  convex mirror  and  concave mirror , whose focus is situated behind the mirror? Ans: The focus of convex mirror is situated behind it. 2. For what position of an object, a concave mirror forms an enlarged virtual image? Ans: Object between pole (P) and focus (F) of the concave mirror. 3. If the  focal length  of a concave mirror is 25cm. What is its radius of curvature? Ans: Focal length = Radius of curvature / 2 25 = R / 2  => R = 50cm. 4. A  ray of light  falls on a mirror normally.  What are the  values of angle of incidence and the angle  of reflection? Ans: Both angle of incidence and the angle of reflection are zero. 5. What is the focal length of a plane mirror? Ans: Infinite. 6. Which spherical mirror is called a divergent mirror? Ans: A convex mirror is called a divergent mirror. 7. What is the angle of incidence, when a ray of light falls on the spherical mirror from its centre  of curvat

Classification of elements: the arrangement of elements in such a manner that elements with similar properties are grouped together while elements with dissimilar properties are separated. EARLY ATTEMPTS OF CLASSIFICATION OF ELEMENTS 1. Lavoisier’s classification of elements: In 1789, Lavoisier first attempted to classify the elements into two divisions namely Metals and Non-metals. However this classification was not satisfactory as there were many exceptions in each category. 2. Dobereiner’s classification of elements: In 1817, Johann Wolfgang Dobereiner grouped three elements into what he termed triads . In each case, the middle element has an atomic mass almost equal to the average atomic masses of the other two elements in the triad. For example, elements like lithium, sodium and potassium have atomic masses 7, 23 and 39 respectively. They are grouped together into a triad as, Li (7) Na (23) K (39) Here the atomic mass of sodium is the average o

NTSE SAMPLE PAPERS 1. A MODEL PAPER NTSE 2. NTSES 3. NTSES ANSWER KEY 4. NTSEE 5. NTSEE ANSWER KEY 6. NTSE X 7. NTSE X ANSWER KEY 8. NTSE SAMPLE 9. NTSE SAMPLE ANSWER KEY 10. GENERAL METNATAL ABILITY TEST 2007 11. NTSE SAMPLE FILE Complete guide to talent search examinations for school students in India  http://jsuniltutorial.weebly.com/ntse.html

10th maths Extra score questions Pair of Linear Equation in Two Variable HOTS By JSUNIL TUTORIAL 1 mark questions :- Q. 1 Is the pair of linear equations consistent: - x + y = 3 ; 3x – 2y = 4 . Q. 2 Find out whether the lines representing the following pair of linear equations are parallel or coincide:- 6x – 3y +10 = 0 ; 2x – y + 9 = 0 Q. 3 Write the value of k for which the following pair of linear equations has unique solution:- x + k y + 6 = 0 ; 2x + 3y + 8 = 0 Q. 4 Write the value of k for which the following pair of linear equations has no solution: - 4x +y =11 ; k x + 3y =5 Q. 5 Write the value of k for which the system of equations has infinite solutions:- 2x – 3y +10 = 0 ; 3x – ky +15 = 0 Q. 6 Does (2, –3) lie on the linear equation 3x – 2y + 5 = 0 Read more »

chemistry adda: Science Sample Paper – 2012 Class – IX (Chemistry)... : Section -A 1. Particles of matter are continuously moving, so they possess ____________________. 2. The melting point of ice is _________...

chemistry adda: class 9th Sample paper 2011- 12 Science Physics &C... : JSUNILTUTORIAL ,PUNJABI COLONY, GALI 01 Class IX Physics + Chemistry Time- 2 ... CBSE PHYSICS

Set-1Practical Skills in Science 1. The two colours seen at the extreme ends of the pH chart are (a) red and blue.  (b) red and green. (c) green and blue. (d) orange and green Ans: (a) Red colour is at the top and blue colour is at the bottom. 2. A student observed that the colour of pH paper changes to green when shedipped it in water. She added a few drops of concentrated hydrochloric acid to the water. The colour of pH paper would turn to (a) light red.  (b) apple green. (c) dark blue. (d) lemon yellow. Ans: (a) The colour of pH paper is green in neutral medium, whereas it is red in acidic medium. 3. When zinc reacts with dilute hydrochloric acid (a) the surface of zinc becomes brighter.   (b) the surface of zinc becomes black and dull. (c) the metal turns into powder.                  (d) the reaction mixture turns green. Ans: (b)  The surface becomes black and dull as the reaction proceeds 4. Students A, B and C were given five raisins each of equal weight. The raisins  were soa

Multiple Choice Questions (5×1)         Choose the correct answer from the given four options in the following questions : 1. Two sides of a triangle are 8cm and 11cm and its perimeter is 32cm.The third side is :               (a) 4cm        (b) 13cm          (c) 14cm     (d) 16cm 2. The base of a triangle is 12cm and height is 8cm .Its area is:              (a) 24cm 2    (b) 96cm 2        (c) 48cm 2     (d) none 3. The sides of a triangular plot are in the ratio 3:5:7 and its perimeter is 300m . The sides of a triangle are.              (a) 60m,100m,40m   (b) 50m,80m,60m   (c) 45m,75m,95m    (d) none 4. What will be the area of quadrilateral ABCD if AB =3cm, BC=4cm, CD=4cm, DA=5cm and AC=5cm.              (a) 12.5cm                  (b) 15.2cm            (c) 18.2cm            (d)19.2cm

CBSE MATH STUDY: Sample Paper 2011-2012 | First Term | Mathematics| 9th Q.1Two lines are respectively perpendicular to two parallel lines. Show that they are parallel to each other. Q.2 Prove that two lines that are respectively perpendicular to two ntersecting lines intersect each other. Q.3Bisectors of interior ∠B and exterior ∠ACD of a Δ ABC intersect at the point T. Prove that ∠ BTC =1/2 ∠ BAC. Q.4. BP and CP are bisector of In a triangle AC>AB Prove that (i) PC > PB (ii) BD > PD (iii)DC>PD Sample Paper 2011-2012

MATH ADDA "10TH MATHS BY JSUNIL": 10th maths polynomial extrascore questions : Math Adda Chapter: POLYNOMIAL YEAR-2011-2012 LEVEL-I 1. The zeroes of the polynomial 2x 2 -3x-2 are a. ...

MATH ADDA "10TH MATHS BY JSUNIL": 10th Number system solved important question : 1. Prove that one of every three consecutive integers is divisible by 3. Ans: n,n+1,n+2 be three consecutive positive integers We k...

Haryana Board of secondary education, bhiwani has modified the exam dates of HTET 2011. It is declared that the previously announced dates of HTET examinations as 24 September 2011 and 25 September 2011 has been postponed to the new dates. As per the circular the new dates are as below : Category 3 (Lecturer group) : November 5, 2011 (Saturday) from 11:00 am to 12:30 pm. Category 1 (Primary Teachers) : November 6, 2011 (Sunday) from 11:00 am to 12:30 pm. Category 2 (Elementary Teachers) : November 6, 2011 (Sunday) from 02:30 pm to 04:00 pm. All the candidates will get their new admit cards before the exams. You are advised to get in touch with the website http://hbse.nic.in for latest updates.

CBSE SAMPLE PAPER MATHEMATICS (Class-8) : CBSE TEST PAPER 8TH MATHEMATICS SA-1 1. What least number must be subtracted from 7250 to get a perfect square? Also, find the square root o...

CBSE 8th CHAPTER: Percentage For All class 8th Maths test paper   JSUNIL TUTORIAL 1. Choose the correct answer. (i) There are 5 oranges in a basket of 25 fruits. The percentage of oranges is ___ (A) 5% (B) 25% (C) 10% (D) 20% (ii) 2/25 = _______ %. (A) 25 (B) 4 (C) 8 (D) 15 (iii) 15% of the total number of biscuits in a bottle is 30. The total number of biscuits is _______.

CLASS VI –SCIENCE HIGHER ORDER THINKING SKILLS WATER 1. Rainy season comes always after summer season. Why? 2. Wet clothes dry faster if you keep them under a fan. Why? 3. If you won’t drink enough water, what happens to your body? 4. A village near a river will always get ground water where as a village which is far away will face acute water problem. Why? 5. You are drenched completely while playing in the rain. But you did not stop playing. To your surprise, your clothes dried after some time.How? AIR AROUND US 1. Sky appears blue. Why? 2. How the fish could live in water? 3. Your father while going to the office, keep a mask to his nose. Did you ever ask your father why he will keep it? 4. Why mountaineers carry Oxygen cylinders with them while climbing high mountains? 5. If you add mud to water, you observe bubbles in water. Why? GARBAGE IN, GARBAGE OUT 1. Each tree can make its own manure. How? 2. You have noticed your

CBSE MATH STUDY: Problem related to factorization,ratiolization : Problem-1 If the values of a – b and ab are 6 and 40 respectively, find the values of a 2 + b 2 and (a + b) 2 . Solution: a 2 + b 2 = (a – b) 2 + 2ab = 6 2 + 2(40) = 36 + 80 = 116 (a + b) 2 = (a – b) 2 + 4ab = 6 2 + 4(40)= 36 + 160 = 196 Problem-2. If (x + p)(x + q) = x 2 – 5x – 300, find the value of p 2 + q 2 . Solution: By product formula, we have (x + p) (x + q) = x 2 + (p + q)x + pq. So, by comparison, we get p + q = –5, pq = –300. Now, we have p 2 + q 2 = (p + q) 2 – 2 pq = (–5) 2 –2(–300) = 25 + 600 = 625. Problem-3. If (x + a)(x + b)(x + c) ≡ x 3 – 6x 2 + 11x – 6, find the value of a 2 + b 2 + c 2 . Solution: From the product formula, we have (x+a)(x+b)(x+c) = x 3 + (a + b + c)x 2 + (ab + bc + ca)x + abc. Comparing, we get a + b + c = –6, ab + bc + ca = 11, abc = –6. ∴ a 2 + b 2 + c 2 = (a + b + c) 2 –2 (ab + bc + ca) = (– 6) 2 – 2(11) = 36 – 22 = 14. Problem-4 If a+b=2 and a2+b2=8,find a3+b3 and a4+b4. CB

Guess Questions 2012 Ch-9 FORCE AND LAWS OF MOTION... : 1. Which of the following statement is not correct for an object moving along a straight path in an accelerated motion? (a) Its speed keep... For more downloadable guess paper jsuniltutorial.weebly.com

CHEMICAL REACTIONS AND EQUATIONS FORMATIVE ASSESSMENT I CBSE QUESTION PAPER -2 MARKS-30 TIME- 70 MINUTES Instructions: · Questions : 1 to 5 – 1 Mark each · Questions : 6 to 9 – 2 Marks each · Questions : 10 to 13 – 3 Marks each · Question 14 – 5 Marks 1. Burning of a candle is a chemical change; where as melting of a candle wax is a chemical change. Why?

CHEMICAL REACTIONS AND EQUATIONS FORMATIVE ASSESSMENT I  CBSE QUESTION PAPER I  MARKS-30 TIME- 70 MINUTES Instructions : · Questions : 1 to 5 – 1 Mark each · Questions : 6 to 9 – 2 Marks each · Questions : 10 to 13 – 3 Marks each · Question 14 – 5 Marks 1. On what chemical law, balancing of chemical equation is based?

Support Study Materials 2014-‘15 Class XII 1. Business Studies 2. Chemistry 3. Computer Science 4. Economics 5. History Courtesy: KVS, RO, Hyderabad http://kvsrohyd.ap.nic.in Support Material on PSA, 2013-14 Support Material on PSA (Class-12) Support Material 2013-14 for Class XII         Economics Support Material Mathematics Support Material Physics Support Material English Support Material Chemistry Support Material Accountancy Support Material

Sample Guess Paper – 2012 Class – IX Subject –Science MAX. MARKS :- 80 General Instructions:- i. The question paper comprises of two sections, A and B, you are to attempt both the sections. ii. All questions are compulsory. iii. All questions to section A and B are to be attempted separately. iv. Question no. 1 to 4 in section A are one mark each.These are to be answered in one word or one sentence. v. Question no. 5 to 13 are two mark each, to be answered in about 30 words. vi. Question no. 14 to 22 are three mark each, to be answered in about 50 words. vii. Question no. 23 to 25 are five mark each, to be answered in about 70 words. viii. Question 26 to 41 in section B are multiple choice questions based on practical skills. Each question is a one mark question. You are to choose one most appropriate response out of four options. SECTION- A 1) Which process is used in wa

Section A (1 mark Questions) 1. What is the physical state of water ay 1000C? 2. Suggest a method to liquefy atmospheric gases 3. Which separation method will you apply to separate different pigment from extract of flower?

CBSE MATH STUDY: CBSE TEST PAPER CLASS - IX Mathematics (Congruent ... : 1. If one angle of a triangle is equal to the sum of the other two angles, then the triangle is (A) an isosceles triangle (B) an obtuse tri...

CBSE SAMPLE PAPER CHAPTER - SI... : 1. If a straight line divides any two sides of a triangle in the same ratio, then prove that the line must be parallel to the third side. 2...

1. Metals generally have the following physical properties: A. They are conducting B. They have luster C. They are hard D. They are ductile Mercury has been classified as a metal because of the properties 1. B and C 2. D and B 3. A and B 4. A and D NTSE SAMPLE PAPERS (SUBJECT-WISE)

Sample Paper – 2012 Class – IX Subject – Science ... : 1. What are the characteristics of particles of matter? 2. A sponge can be pressed easily, still it is called a solid. Why? 3. ...

Class X Physics + Chemistry   SA-1                Time- 2 hrs                            MM : 50        General Instructions:- 1. Question 1 to 10very short answer questions of 1 mark each  2. Question no 11 to 16 are short answer questions of 2 marks each   3. Question no 17 to 22 are also short answer question carrying 3marks each  4. Question no 23 and 24 are long answer question carrying 5 marks.  1. What is common to all acids? 2. A white chemical compound becomes hard on mixing proper quantity of water. It is also used in surgery to maintain joins in a fixed position. Name the chemical compound. 3. Name a device that help to maintain a potential difference across a conduct 4. A farmer has found that the pH of soil in his fields is 4.2. Name any two chemical material which he can mix the soil to adjust its pH. 5. Write the pH value, after which teeth start decaying?