Friday, August 31, 2012

Class 10 - Science - CH13 - Magnetic Effects of Electric Current

Magnetic Effects of Electric Current
Earth's Magnetic Field
(computer simulation)
credits: wikipedia

MCQs, Q & A from CBSE Papers

Q1: The two poles in a magnet have
(a) equal pole strength.
(b) unequal pole strength.
(c)  can be same or different
(d) None of these

Q2:A magnet AB is broken into two pieces. What is the polarity of A, B, C and D?

Thursday, August 30, 2012

Class 9 - English (Comm.) - Ch 1 - How I Taught My Grandmother To Read (MCQs)

How I Taught My Grandmother To Read
MCQs asked in CBSE Papers

Author: Sudha Murty

Q1: The grandmother could relate to the central character of the story 'Kashi Yatre' as :

(i) both were old and uneducated.
(ii) both had granddaughters who read to them.
(iii) both had a strong desire to visit Kashi.✓
(iv) both were determined to learn to read.

Q2: Why did the women at the temple discuss the latest episode of 'Kashi Yatre'?

(i) to pass their time.
(ii) the writer, Triveni. was very popular
(iii) they could relate with the protagonist of the serial.✓
(iv) women have a habit of discussing serials.

Wednesday, August 29, 2012

CBSE Class 7 - History - CH3 - THE DELHI SULTANS

NCERT Chapter and other Q & A

Qutub Minar -
The minar was built by three Sultans.
Can you name them?

Q1(NCERT): Which ruler first established his or her capital at Delhi?

Answer: Delhi first became the capital of a kingdom under the Tomara Rajputs. Anangpal of Tomar dynasty built a fort called Lal Kot (present area around Suraj Kund and Mehrauli). Later Chauhans defeated Tomars and established their rule. Chauhans renamed Lal Kot as Kila Rai Pitthora.

Q2: Name any famous king of Tomar Dynasty and Chauhan Dynasty

Answer: Angpal (Tomar) and Prithviraj Chauhan

Tuesday, August 28, 2012

CLass 9 - Maths - Ch12 - HERON’S FORMULA

(Questions from CBSE Papers)

Points to Remember

1. Area of a triangle = ½ base × height
As in figure,
Area =  ½ BC × AM square units.

2. When the triangle is right angled.

Area of a triangle = ½ base × height

 = ½ × Product of sides containing the triangle.

Monday, August 27, 2012

CBSE Class 8 - Science - Coal and Petroleum

Coal and Petroleum
Oil Drilling
(NCERT Chapter Answers and Q & A)

Q1:What are the advantages of using CNG and LPG as fuels?
Answer: The advantages of using CNG and LPG as fuels are:
  1. They are used as non-polluting fuels to transport vehicles.
  2. CNG is used for power generation and is a cleaner fuel.
  3. LPG can be used directly for burning in homes and factories.
  4. LPG and CNG has virtually no ash particles left after burning.

Q2:Name the petroleum product used for surfacing of roads.
Answer: Bitumen is the petroleum product used for surfacing of roads.

Sunday, August 26, 2012

CBSE Class 9 - Social Science - Physical Features of India

Physical Features of India
Concepts Maps & MCQs

1. Physiographic divisions

Class 6 - Science - CH9 - The Living Organisms and Their Surroundings

The Living Organisms and Their Surroundings
Cockatoo - Can it survive without mangrove?

(NCERT Chapter Solution and other Q & A)

Q1: What is a habitat?
Answer: The surroundings where plants and animals live, is called their habitat. A habitat provides suitable climatic conditions like food and shelter so that plants and animals can live there.

Q2: Do all organisms live in same habitat?
Answer: No all organisms do not live in same habitat. Some may share the habitat e.g. lion and deer. For example camel can live in deserts only while frogs can survive in fresh/rain water.

Saturday, August 25, 2012

Class 9 - Science - Ch10 - Gravitation


Johannes Kepler -
proposed laws of planetary motion
NCERT Q & A, Study Notes, Numerical Problems, Questions asked in CBSE Papers.

Q1: What was geocentric model? Who proposed this theory?

Answer: Ptolemy a Greek mathematician and astronomer proposed geocentric model around 125 AD. According to this model, the earth is in the center and sun, other planets and stars move around it.
To explain retrograde motion of planets, he also proposed that those planet also move in small circle. The geocentric theory held valid till 1543 AD when Copernicus proposed heliocentric model.

Friday, August 24, 2012

CBSE Class 10 - History - Ch7: Print Culture and the Modern World

Print Culture and the Modern World

Diamond Sutra - China (868AD)
Q1: Printing was first developed in
(a) Japan
(b) Portugal
(c) China
(d) Germany

Q2(CBSE 2010): Which one among the following is an ancient name of Tokyo?
(a) Osaka
(b) Nagano
(c) Edo
(d) Gifu

CBSE Class 10 - Maths - CH8 - Introduction to Trigonometry

Introduction to Trigonometry
(MCQs asked in CBSE Papers)
Hipparchus: Father of Trignometry
Image credits:wikipedia

Q1: If cot A=12/5, then the value of  (sin A + cos A) × cosec A is :
(a) 13/5
(b) 17/5
(c) 14/5
(d) 1

Q2: cos 1° × cos 2° × cos 3° × ... × cos 180° is equal to :
(b) 0
(c) 1/2
(d) –1

Wednesday, August 22, 2012

CBSE - Class 9 - Maths - Lines and Angles (Ex. 6.3)

Lines and Angles  
(NCERT Ex. 6.3 + Q & A from CBSE papers)

Points to remember
1. The sum of the angles of a triangle is 180º.

Impossible Triangle
2. If a side of a triangle is produced, then the exterior angle so formed is equal to the sum of the two interior opposite angles.

3. An exterior angle of a triangle is greater than either of its interior opposite angles.

4. If one angle of a triangle is a right angle, then the other two angles are acute angles. (Thus no triangle can have two right angles.)

5. The two acute angles in every right triangle are complementary.

6. The sum of all interior angles of an n-sided polygon is (n -2) × 180°

7. The sum of all exterior angles of an n-sided polygon is 360°.(one exterior angle at each vertex)

Tuesday, August 21, 2012

CBSE Class 9 English (Comm). SA1- Grammar - Verb Forms

Class 9 English (Comm). SA1- Grammar - Verb Forms
(Q & A from CBSE Examination)

Q(CBSE 2011): Complete the following by choosing the correct answer from the options given below:

(a) In a new audio recording, the leader of the Yemen branch of Al Qaeda, __________ by the Obama administration‘s alleged decision to authorize the assassination of an American - born Islamic cleric linked to the Ft. Hood shooting and attempted Christmas Day airplane terrorism  plots.
(I) warned Americans they will be harmed
(II) had warned Americans they will be harmed
(III) has warned Americans that they will be harmed.
(IV) has been warned Americans, they will be harmed

CBSE Class 9 - French SA1 Paper (Solved)

Class 9- French - SA1 Paper 2010
(SQP from CBSE)

CBSE Class 7 Science - CH10 - Respiration in Organisms

Respiration in Organisms

NCERT Chapter Solutions and other Q & A

Q1: How breathing is different from respiration?

1It involves intake of oxygen and release of Carbon dioxide.Respiration is more complex and it includes
breathing as well as oxidation of food in cells to release energy.
2It is a physical process i.e. exchange of gases.It is a bio-chemical process in which food is broken along with release of energy.
3It involves breathing organs e.g. lungs in mammals.It occurs at cellular level

Monday, August 20, 2012

CBSE Class 9 - Social Science - Nazism and the Rise of Hitler

Nazism and the Rise of Hitler
Charlie Chaplin as Hilter in 'The Great Dictator'
The two contemporaries... Chaplin who won heart of millions
and other killed millions!
image credits:wikipedia


Q1: When the First World War was fought?
(a) 1911-1914
(b) 1914-1918
(c) 1916-1920
(d) 1941-1945

Q2: During First World War against whom Germany did not fight?
(a) Austria
(b) England
(c) France
(d) Belgium

Saturday, August 18, 2012

Class 10 English (Comm.) workbook - Unit 13 - REPORTED SPEECH


A.1 Read and enjoy the following article.
The Road to English
(Adapted from an article by Arishban Bagchi (Hindu college)
[The Hindustan Times, 4 October 1996]

1. The great question, after you have failed to put yourself in an engineering or medical college in contemporary Indian society, is whether you'll ever find a job.

CBSE - Class 9 - Hindi (B) SA1 Paper (हिंदी-ब)

Class 9- Hindi-B - SA1 Paper (हिंदी-ब)

CBSE Class 9 - Science - CH10 - Gravitation (Worksheet-1)

Nicolaus Copernicus - His theory
was one the trigger point for
scientific revolution.
Fill in the Blanks

1. Geocentric model i.e. the Earth is the orbital centre of all celestial bodies was proposed by _____.

2. Heliocentric model was proposed by ______.

3. According to the Heliocentric theory, the _____ is at centre and _______ move around it.

4. ______ stated that every planet moves around the sun in closed elliptical orbit, with the ___ at one focus.

Thursday, August 16, 2012

CBSE Class 10 - Science - Sources of Energy (FA- Assignment)

Sources of Energy 
(Formative Assessment Assignment)

Q(FA Manual for Teachers): Read the clues given below and fill up the blocks with appropriate word/term to compete the crossword puzzle given below: One 'word' has been done for you. 

CBSE Class 9 - Economics - CH2 - People as Resource

People as Resource
MCQs from CBSE Papers

Q1: What is the literacy rate of India as per 2001 census?
(a) 60% 
(b) 62% 
(c) 65% 
(d) 70%

Q2: Which is the most literate state in India?
(a) Bihar 
(b) Kerala
(c) Goa 
(d) Assam

CBSE Class 9 - Science - The Matter in Our Surroundings (worksheet)

The Matter In Our Surroundings
(Worksheet - Questions asked in CBSE Papers)

Very short Answer Questions (1 mark)

1. What is common among the three states of matter?

2. Which property of gas is used in supplying oxygen cylinders to hospitals?

3. What is dry ice ? What happens when the pressure under which it is stored is decreased to 1 atmosphere ?

CBSE Class 9 - Science - CH15- Improvement In Food resources


Fill In the Blanks

1.  _______ and ________ are the main sources of nutrient supply to crops.

2.  __________ and _________ provide us with all our animal and plant food.

3. The science of growing vegetables, fruits and ornamental plants is called _________.

4. Composting done using earthworms is called _________.

5. Cereals provide us _______ (carbohydrates/proteins/fats).

Wednesday, August 15, 2012

CBSE Class 9- Sanskrit (संस्कृत) SA1 Paper- 2010

Class 9- Sanskrit - SA1 Paper (संस्कृत)

SA-1 2012 Exam from Second Half of September

Conduct of School Based Summative Assessment–I (September, 2012) Classes IX & X–2012

1. CBSE has asked CBSE affliated schools to conduct SA-1 exam from second half September, 2012

Tuesday, August 14, 2012

CBSE - Class 9 - Maths - Lines and Angles (Ex. 6.2)

Lines and Angles
(NCERT Ex. 6.2 and Q & A from CBSE papers)

1. Corresponding angles axiom: If a transversal intersects two parallel lines, then each pair of corresponding angles is equal.

2. If a transversal intersects two lines such that a pair of corresponding angles is equal, then the two lines are parallel to each other. 

3. If a transversal intersects two parallel lines, then each pair of alternate interior angles is equal.

Monday, August 13, 2012

NTSE - MAT Quiz - 13 - General Awareness

General Awareness
NTSE SAT Quiz-13 /CTET Social Science

Q1: Who is the composer of National Anthem of India?
(a) Bankim Chandra Chatterji
(b) Sharat Chandra Chattopadhyay
(c) Rabindranath Tagore
(d) Ishwar Chandra Vidyasagar

CBSE Class 10 - Science - Ch14 - Sources of Energy

Sources of Energy 
(Q & A)

Q1: Fill in the blanks.
(a) Hydro power plants convert _________ energy of falling water into electricity.

(b) When wood is burnt in a limited supply of oxygen, ______ is left behind as residue.

(c) Gases like ______, _____, ______ and ______ are generated in a biogas plant.

(d) Biogas contains _____ % methane.

(e) To maintain the required speed of the turbine, wind speed should be higher than _____.

(f) To establish 1 MW generator, the wind energy farm needs about ___ hectares of land.

(g) Ocean Thermal Energy plants can operate if the temperature difference between the water at the surface and water at depths up to ______ km is _______ or more.

(h) ______ and _______ countries have number of power plants based on geothermal energy.


Saturday, August 11, 2012

CBSE Class 9 - Social Studies - MCQs asked in (SA1 )Examination(set-2)

India Physical Map
Social Studies - MCQs asked in (SA1) Examination 2011- (Set-2)

21. What was the name of the direct tax paid by the third estate to the state ?
(a) Tithe
(b) Taille
(c) Livre
(d) Revenue

22.Which one of the following groups of states has common frontiers with China ?
(a) Jammu and Kashmir, Himachal Pradesh, Uttarakhand and Arunachal Pradesh.
(b) Rajasthan, Punjab, Jummu and Kashmir and Arunachal Pradesh.
(c) Chattisgarh, Bihar, Jharkhand and Jummu and Kashmir.
(d) Bihar, West Bengal, Uttarakhand and Himachal Pradesh.

Friday, August 10, 2012


(MCQs asked in CBSE Class 10 Social Studies SA1 Examination)
Nicobar Pigeon
(image credits:wikipedia)

Q1: Which one of the following is an Extinct species?
(a) Blue sheep
(b) Asiatic cheetah
(c) Black buck
(d) Asiatic Elephant

Q2: What was the aim of Chipko Movement?
(a) Human rights
(b) Political rights
(c) Agricultural expansion
(d) Forest conservation

Thursday, August 9, 2012

CBSE Class 9 - Social Studies - MCQs asked in (SA1 )Examination- (Set-1)

Social Studies - MCQs asked in (SA1) Examination 2011
Storming of Bastille

1. In the context of France what was "Tithe" ?
(a) Religious tax
(b) Water tax
(c) Salt tax
(d) Tobacco tax

2. Which Revolution gave the ideas of Liberty, Freedom and Equality to the world ?
(a) The American Revolution
(b) The French Revolution
(c) The Russian Revolution
(d) None of these

Wednesday, August 8, 2012

CBSE Class 9- Social Science - CH2: Russian revolution (Questions asked in CBSE Examination)

Social Science - Socialism in Europe & Russian revolution 
(Questions asked in CBSE Examination)

(CBSE 2010 SA1  Examination)

Q1: How did the destruction of Russian industries after the First World War become one of the cause
of resentment of people?

Q2: What was the global influence of Russian Revolution?

Q3: Discuss the relationship between peasants and nobles in Russia during early 19th century.

Q4: What were the different notions of Liberals, Radicals and Conservatives regarding new formation of the Government in Russia ? Discuss.

Q5: Why socialists were against private property ?

Tuesday, August 7, 2012

Colours in Idioms

A red carpet welcome

Colours in Idioms

Colours play an important role in our lives. Colours in idioms convey different meanings. Here is a list of few idioms on colours

➊. Black Market: an underground market where things are bought or sold illegally.

e.g. You can get forty two inch LCD television much cheaper at the black market but there is no guarantee about its parts.

➋. Out of the blue: an unexpected event.

e.g. Shyam has not been working since January. Last week a job offer came out out of the blue.

Sunday, August 5, 2012

CBSE Class 9 - Ch9 - Force and Laws of Motion

Newtons' Craddle
Find out which Law is demonstrated here?
Force and Laws of Motion
NCERT Solution and Q & A

Q1: Define intertia.

Answer: Inertia is the resistance of a body to change in its state of rest or motion. It is an inherent property of the body. The property of inertia is due to the mass of the body. Greater the mass, higher will be the inertia.

There are three kinds of intertia:
  1. Intertia of rest
  2. Interia of motion
  3. Interia of direction.

Saturday, August 4, 2012

CBSE Class 10 - Science - CH3 - Metals and Non-Metals (MCQs)

Check in Periodic Table
How many metals, non-metals and metalloids?
Metals and Non-Metals

1. Which of the following is the best electrical conductor?
(a) Gold
(b) Silver
(c) Copper
(d) Aluminium

Friday, August 3, 2012

CBSE Class 9 and Class 11 to have PSA test from SA-II onwards

CBSE has asked CBSE affiliated schools to conduct a MCQ based exam called Problem Solving Assessment (CBSE-PSA) for class IX and XI from second term (SA-2) w.e.f. from January-Feburary 2013.
Later the test will be conducted for class X also.

Its score will be added in FA-4 which is 10% of total assessments of Class IX and class XI students will get a certificate. 

Thursday, August 2, 2012

CBSE Class 7 Science - CH14 - Electric Current and its Effects

Electric Current and its Effects
Why CFL is better than electric bulb?
NCERT Solutions and other Q & A

Q1: Draw in your notebook the symbols to represent the following components of electrical circuits: connecting wires, switch in the ‘OFF’ position, bulb, cell, switch in the ‘ON’ position, and battery.


Wednesday, August 1, 2012

CBSE - Class 9 - Maths - Lines and Angles (Ex. 6.1)

NCERT Excercise 6.1

Q1: In Fig. 6.13, lines AB and CD intersect at O. If ∠AOC + ∠BOE = 70° and ∠BOD = 40°, find ∠BOE and reflex ∠COE.

CBSE - Class 10- Science Proficiency Test Paper (2012) - Set-A

Class 10 - Science Proficiency Test Paper 2012 (Set-A)

(See Answer key at the end.)

CBSE - Class 10 - Proficiency Test Paper- Maths (Set-A)

Class 10 - Maths Proficiency Test Paper (Set-A)

(See Answer key at the end.)

CBSE Class 9 - Science - CH9 - Force and Laws of Motion (worksheet)

Isaac Newton
Force and Laws of Motion
Fill in the blanks

1. The study of motion of a body under the action of a force is called ______.

2. (Impulse/Force/Pressure) ______ is a push or pull acting upon an object.

3. The natural tendency of objects to resist a change in their state of rest or of uniform motion is called ______.