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👌Aditya 👌 👌Kumar👌 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Friction force
- The external force that opposes relative motion between 2 surfaces in contact.
- Friction acts on the surface of contact of both the bodies.
Factors affecting friction
Depends on the nature of surfaces in contact. (Friction exists between two surfaces) E.g.: glass and rubber
Nature of surface in contact
- Friction depends on how hard the two surfaces pressed together, as more surface in contact and more bonds are formed→ more bonds to break → means more friction.
- Only the normal reaction force (exactly perpendicular ) to the two surfaces increases friction.
Calculating frictional force using a spring balance
- Using a spring balance we can find the frictional forces opposed by different materials.
- Sandpaper gives a higher reading as compared to stainless steel.
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Yogita Ingle 5 years, 2 months ago
- This system of land revenue was instituted in the late 18th century by Sir Thomas Munro, Governor of Madras in 1820.
- This was practised in the Madras and Bombay areas, as well as Assam and Coorg provinces.
- In this system, the peasants or cultivators were regarded as the owners of the land. They had ownership rights, could sell, mortgage or gift the land.
- The taxes were directly collected by the government from the peasants.
- The rates were 50% in dryland and 60% in the wetland.
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Yogita Ingle 5 years, 2 months ago
Reformer is a person who tries to reform as society . Eg - Raja Ram Mohan Roy .
Raja Ram Mohan Roy founded a society' called the Sabha Brahmo (1828) which later became Brahmo Samaj.
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Milk is converted into curd by the process of fermentation. Milk consists of globular proteins called casein. The curd forms because of the chemical reaction between the lactic acid bacteria and casein. During fermentation, the bacteria use enzymes to produce energy (ATP) from lactose. The byproduct of ATP production is lactic acid. Lactic acid acts on the globular proteins present in the milk and denatures them. This denaturation destroys the tertiary and quaternary structures of proteins and the globular proteins are converted into fibrous proteins thus giving a thick texture to the milk due to coagulation of the proteins.
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Yogita Ingle 5 years, 2 months ago
The one significant way in which Indian secularism differs from the dominant understanding of secularism as practised in USA This is because unlike the strict separation between religion and the State in American secularism, in Indian secularism the State can intervene in religious affairs,. For example the Indian Constitution intervened in Hindu religious practises in order to abolish untouchability. In Indian secularism, though the state is not strictly separate from religion it does maintain a principled distance vis-a-vis religion.
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Yogita Ingle 5 years, 2 months ago
There were many reasons. Some are:
1)The sepoys were paid much less than the British soldiers. They were also treated unfairly by the British officers.
2) All high posts in the army were reserved for the British. Hence, the scope of promotion was very limited for a sepoy.
3) The sepoys were not allowed to wear caste and religious marks.
4) An act was passed that required the new recruits to travel overseas, if needed. The Hindu sepoys believed that travelling across the sea led to loss of caste.
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Yogita Ingle 5 years, 2 months ago
The factors influencing the uneven distribution and density of population are discussed below:
(i)Geographical Factors
(a)Availability of water: It is the most important factor for life. So, people prefer to live in areas where fresh water is easily available. Water is used for drinking, bathing and cooking – and also for cattle, crops, industries and navigation. It is because of this that river valleys are among the most densely populated areas of the world.
(b)Landforms: People prefer living on flat plains and gentle slopes. This is because such areas are favourable for the production of crops and to build roads and industries. The Ganga plains are among the most densely populated areas of the world while the mountains zones in the Himalayas are scarcely populated.
(ii)Economic Factors
(a)Minerals: Areas with mineral deposits attract industries. Mining and industrial activities generate employment. So, skilled and semi–skilled workers move to these areas and make them densely populated. Katanga Zambia copper belt in Africa is one such good example.
(b)Industrialisation:Industrial belts provide job opportunities and attract large numbers of people. These include not just factory workers but also transport operators, shopkeepers, bank employees, doctors, teachers and other service providers. The Kobe-Osaka region of Japan is thickly populated because of the presence of a number of industries.
(iii)Social and Cultural Factors
Some places attract more people because they have religious or cultural significance. In the same way – people tend to move away from places where there is social and political unrest. Many a times governments offer incentives to people to live in sparsely populate
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Pallavi Agnihotri 5 years, 2 months ago
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