Friday 31 August 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 30 August 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 29 August 2012

CBSE Class 7 - History - CH3 - THE DELHI SULTANS (#eduvictors)(#cbseClass7SocialScience)

OUR PASTS II - 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 in Delhi?

Answer: Delhi first became the capital of a kingdom under the Tomara Rajputs. Anangpal of Tomar dynasty built a fort called Lal Kot (the 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 28 August 2012

CLass 9 - Maths - Ch12 - HERON’S FORMULA



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 27 August 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 26 August 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.