CBSE Class 7 - History - Chapter 7 - Tribes, Nomads and Settled Communities (#cbsenotes)(#eduvictors)

Chapter 7 - Tribes, Nomads and Settled Communities

Q & A

Q1: What was the varna system of the Indian society?

Answer: In large parts of the subcontinent, society was divided according to the rules of Varna. These rules, as prescribed by the Brahmanas, were accepted by the rulers of large kingdoms. The difference between the high and low, and between the rich and poor, increased. Under the Delhi Sultans and the Mughals, this hierarchy between social classes grew further.


Q2: Who were tribals?

Answer: Many societies in the subcontinent did not follow the social rules and rituals prescribed by the Brahmanas. Nor were they divided into numerous unequal classes. Such societies are often called tribes. People of these tribes were called the tribals.

Q3: Fill in the blanks

1. In Punjab, the ________ tribe was very influential during the 13th and 14th century.
2. The ________ was a large and powerful tribe in the northwest.
3. ______ and _______ were the two tribe of northeast.
4. ______ and _______ were the two tribes of Maharashtra.

Answer:
1.  In Punjab, the Khokhar tribe was very influential during the 13th and 14th century.
2. The Balochis was a large and powerful tribe in the northwest.
3. Nagas and Ahoms were the two tribes of the northeast.
4. Kolis and Berads were the two tribes of Maharashtra.

CBSE Class 9 - English - Moments - Chapter - The Snake and The Mirror (Chapter Summary and Questions and Answers)(#cbsenotes)(#eduvictors)

The Snake and The Mirror

Chapter Summary and Q & A

Author: Vaikom Muhammad Basheer

Summary:

1. A lonely unmarried Homeopathy specialist lived in a non-zapped leased life with his few visiting rodents and cats.

2. On a hot summer night, the doctor came back to his room after dinner and heard a noise, when he opened the door. Noise, being a familiar one, he did not pay any attention to it and lay down on his bed but could not sleep.

3. He took out a book, opened it on the table. He looked into the large mirror kept on the table and admired himself as a young, handsome, unmarried doctor.

CBSE Class 12 - Physics - Chapter 11 - Dual Nature Of Radiation and Matter - Very Short Questions Answers (#cbsenotes)(#eduvictors)

Class 12 Physics

Dual Nature Of Radiation and Matter  

Very Short Questions Answers

Q1: Write the relationship of de-Broglie wavelength λ associated with a particle of mass m in terms of its kinetic energy K.

Answer: Kinetic Energy (K) = p²/2m
    where p = momentum and m = mass.
    ∴ p = √2mK

    ∴ de-Broglie wavelength λ = h/p = h/ √2mK


Q2: Mention one physical process for the release of an electron from the surface of a metal?

Answer: Photoelectric emission.


Q3: Name an experiment which shows the wave nature of the electron. Which phenomenon was observed in this experiment using an electron beam?

Answer: Davisson-German experiment shows the wave nature of the electron. Phenomena of constructive interference were observed in the Davisson-Germer experiment.


Q4: What is Thermionic emission?

Answer: It is the phenomenon of emission of electrons from the metal surface when heated suitably.

Geography - The Composition of the Earth's Crust (#eduvictors)(#cbsenotes)

Geography

The Composition of the Earth's Crust

Class 10 - Chemistry - Carbon and Its Compounds - Study Notes - Download PDF (#cbsenotes)(#eduvictors)

CBSE Class 10 - Chemistry 
 Carbon and Its Compounds - Study Notes (PDF)

Chemistry is that branch of science which deals with the composition, structure and properties of matter. Organic chemistry is predominantly concerned with the reactions that organic molecules undergo. Hydrocarbons are compounds that contain only carbon and hydrogen atoms. Carboxylic acids contain both a carbonyl group (C=O) and a hydroxyl group (–OH) on a terminal carbon. Carboxylic acids, like aldehydes, are terminal functional groups.

Here follows the class 10 Chemistry - Carbon and Its Compounds notes available as pdf file.

CLASS 10 : SOCIAL SCIENCE - CHAPTER : THE AGE OF INDUSTRIALISATION (Q and A) (#cbsenotes)(#eduvictors)

THE AGE OF INDUSTRIALISATION 

(Questions and Answers)

Q1: Explain what is meant by proto-industrialisation?

Answer:

1. Proto-industrialisation refers to that phase of industrialization which existed in Britain before the growth of factories using mechanical power.

2. Industries during this phase were run with the help of human labour.

3. The proto-industrialisation system was controlled by the merchants.

4. Goods were produced by a vast number of producers working within their family farms and not in the factories.


Q2: In the proto-industrialisation period, why was it difficult for new merchants to set up business in towns?
OR
Why did the merchants move to the countryside to set up their business?


Answer: It was difficult for merchants to set up their business in towns because:

1. Urban crafts and trade guild associations were powerful in the towns. They restricted the entry of new people into the trade.

2. Rulers granted different guilds the monopoly rights to produce and trade in specific products.

So the new merchants turned to the countryside.

CBSE Class 11 - Physics Sample Question Paper - (2018-19) (#cbsenotes)(#eduvictors)

CBSE Class 11 - Physics
 Sample Question Paper - (2018-19)

Physics is a study of basic laws of nature and their manifestation in different natural phenomena. Physics is the study of physical world and matter and its motion through space and time, along with related concepts such as energy and force. The class 11 syllabus provides logical sequencing of the ‘Units’ of the subject matter with proper placement of concepts with their linkages for better understanding.

Here follows the class 11 Half Year Physics sample question paper to assess your knowledge.