Friday 21 October 2016

CBSE Class 9 - Biology - CH 7 Diversity In Living Organisms - Very Short Questions and Answers

Diversity In Living Organisms


Very Short Question Answers


Q1: Who introduced the system of scientific nomenclature of organisms?

Answer: Carolus Linnaeus


Q2: In which Kingdom, an organism does not have a well defined nucleus and organelles?

Answer: Monera



Q3: In the hierarchy of classification, which group will have the largest number of organisms?

Answer: Kingdom


Q4: Which in your opinion is more basic characteristic for classifying organism. The place where they live in or the kind of cells they are made of?

Answer: Cell Design (Kinds of cells make an organism.)


Q5: Give examples of the organisms that have cilia and flagellum for moving around.

Answer: Paramecium (Cilia) and Euglena (Flagellum)

Saturday 15 October 2016

CBSE Class 10 - Economics - Globalisation and Indian Economy

Globalisation and Indian Economy

CBSE Class 10 - Economics - Globalisation and Indian Economy

Q & A based on NCERT Chapter


Q: Define Globalisation.

Answer: Globalisation is an integration among the countries through foreign trade and foreign investments by MNCs. Its a linkage of nation's markets with global markets.


Q: What is MNC? Give two examples.

Answer: Multinational Corporation or MNC is a business firm operating in several countries but centrally managed from one (home) country.
Examples of MNCs in India: Nokia, Ford, L&T, Oracle


Q: List three factors for globalisation.

Answer:  Factors for globalisation are:

Liberalisation of trade and investment policies.
Improvement in Technology
Influence from international organizations.


Monday 10 October 2016

CBSE - Class 6-12 - Mathematics - Important Formulas

Mathematics - Important  Formulas 



eduvictors.com has added a new section "Mathematics" and has compiled important formulas on different topics.

Here is the list of Mathematics formulas:

1. Algebra Formulas

⓵ Polynomials
⓶ Fractions
⓷ Algebraic Identities
⓸ Exponents
⓹ Roots

Friday 7 October 2016

CBSE Class 10 - Maths - Quadratic Equations - Summary

Quadratic Equations - Summary

CBSE Class 10 - Maths - Quadratic Equations - Summary

A polynomial of degree 2 is called quadrilateral polynomial. The general form of a quadrilateral polynomial is ax2 + bx+ c, where a, b, c are real numbers such that a ≠ 0 and x is a real variable.


If p(x) = ax2  + bx + c, a ≠ 0 is a quadratic polynomial and α is a real number, then p(α) = aα2 + bα + c is known as the value of the quadratic polynomial p(x).

A real number α is said to be a zero of the quadratic polynomial p(x) = ax2  + bx + c, if p(α) = 0.

If p(x) = ax2  + bx + c is a quadratic polynomial,then p(x) = 0 i.e. ax2  + bx + c = 0, a ≠ 0 is called a quadratic equation.

A real number α is said to be root of the quadratic equation ax2  + bx + c = 0, if aα2 + bα + c = 0.
In other words, α is a root of ax2  + bx + c = 0 if and only if α is zero pf the polynomial p(x) = ax2  + bx + c.

Tuesday 4 October 2016

Class 8 - Our Pasts3 - When People Rebel 1857 and After (Q and A)

When People Rebel 1857 and After


Begum Hazrat Mahal (Awadh)
Women like Rani Laxmi Bai, Hazrat Mahal took an active part in 1857 revolt.

Q & A based on NCERT Chapter


Q1: What was the state of Nawabs and Kings during mid-eighteenth century?

Answer:
ⓐ Nawabs and kings had seen their power erode.
ⓑ They gradually lost their authority and honour.
ⓒ Their freedom have been reduced and their forces were disbanded.
ⓓ Their revenues and territories taken away by stages.


Q2: What was the demand of Rani Lakshmibai of Jhansi that was refused by the British?

Answer: After the death of her husband, Rani Lakshmibai of Jhansi wanted the East India Company to recognise her adopted son as the heir to the kingdom. This demand was refused by the British. Finally, the Company annexed the kingdom as per the Doctrine of Lapse.


Q3: What plea of Nan Saheb was turned down by the East India Company?

Answer: Nana Saheb was the adopted son of Peshwa Baji Rao II. He pleaded that he would be given his father’s pension when the latter died. However, the Company, confident of its superiority and military powers, turned down his plea.


Q4: Who was the Governor General when Awadh was annexed in 1856?

Answer: Dalhousie


Q5: How was Awadh annexed by the East India company?

Answer: In 1801, a subsidiary alliance was imposed on Awadh. In 1856 it was taken over by the company on the pretext of misgovernace and poor administration.


Friday 30 September 2016

Class 8, 10: Science - Uses of Some Common Metals and Non-Metals

Uses of Some Common Metals and Non-Metals


Class 8, 10: Science - Uses of Some Common Metals and Non-Metals

USES OF SOME COMMON METALS


MetalMain Uses
Iron

Bridges,
Train tracks,
Construction Bars, Steel,
Engine Parts, Iron sheets etc.

CopperElectrical Wires,
Utensils,
Coins etc.

Aluminium    Electric Wires,
Utensils, Airplanes,
Metallic Paints,
Foil for packaging etc.

Silver

Jewellery, Electroplating, photography,
Utensils, Coins,
silvering of mirrors etc.

GoldJewellery and Decorations, Coins

Lead

Batteries, Alloys, Paints, Alloys like solder,
Protective screen for X-Rays etc.

Mercury

Thermometers, Barometers, Dental amalgams etc.