When we toss two coins simultaneously then the possible of outcomes are: (two heads) or (one head and one tail) or (two tails) i.e., in short (H, H) or (H, T) or (T, T) respectively; where H is denoted for head and T is denoted for tail.

Edge of the cube = diameter of sphere = 7 cm

Radius of the sphere =  = 3.5 cm

Volume of the sphere = 

= 179.67 

. (i) United struggle : The most important factor responsible for arousing the sense of nationalism among the Indians was the united struggle against the Britishers.
(ii) Cultural processes : There were also a variety of cultural processes through which nationalism captured people’s imagination. History and fiction, folklore and songs, popular prints and symbols, all played a part in the making of nationalism.
(iii) Bharat Mata : The identity of India came to be visually associated with the image of Bharat Mata, which was created in 1870 by Bankim Chandra Chattopadhyay, who wrote
‘Vande Mataram’ as a hymn to the Motherland. Inspired by the Swadeshi Movement, Rabindranath Tagore painted his famous image of Bharat Mata.
(iv) Revival of Indian Folklore : The idea of nationalism was also developed by reviving the Indian Folklore.
In late-nineteenth-century India, nationalists began recording folk tales sung by bards and they toured villages to gather folk songs and legends. This was done to promote the traditional culture that had been corrupted and damaged by western forces. It was essential to preserve this folk tradition in order to discover one’s national identity and restore a sense of pride in one’s past.
(v) Reinterpretation of History : By the end of the nineteenth century many Indians began feeling that to instill a sense of pride in the nation, Indian history had to be thought about differently. The British saw Indians as backward and primitive, incapable of governing themselves. In response, Indians began looking into the past to discover India’s great achievements. They wrote about the glorious developments in ancient times. The nationalist historians urged the readers to take pride in India’s great achievements in the past and struggle to change the miserable conditions of life under British rule.

Anne Frank the author of The diary of a young girl was born in Frankfurt Germany on 12 June 1929 she was an intelligent child she was very wise for her age was different from other children of her age she was only 13 good think clearly and deeply new the difference between friendship and true friendship she had many friend before going into hiding she had loving parents and good home she felt herself alone in the world was no one in home she could confide so she decided to keep diary as a friendshe gave it name of kitty the very first entry in her diary reveals many things about her she had a very sharp memory she could write about experiences in a clear and interesting manner she had a keen sense of humour she could invent amusing argument for any subject she was mature enough thought represented herself promising writer

Elements – Elements constitute the simplest chemical substances in which all the atoms are exactly the same

Electronegativity : The electronegativity of an element is defined as the relative tendency of its atom to attract electrons towards itself when it is bounded to the atom of another elements.

Satyagraha was a novel method of mass agitation. The idea of Satyagraha emphasized upon the power of truth and the need to search for truth. It suggested that if the cause was true and if the struggle was against injustice, then physical force was not necessary to fight the oppressor.
Through non-violent methods a Satyagraha could appeal the conscience of the oppressor by the power of truth, which was bound to win.

(i) Agenda 21 was adopted at first International Earth Summit held in 1992 at Rio de Janerio Brazil. 

(ii) The two principles are as follows: 

(a) To combat environmental damage, poverty disease through global cooperation on (common interests, mutual needs and shared responsibilities). 

(b) Every local government should draw its own local Agenda 21.

We know that circumference of a circle = 2π r.

We know that diameter = 2r.

Given circumference of a circle exceeds diameter by 16.8cm.

2πr - 2r = 16.8

2r(π - 1) = 16.8

2r(22/7 - 1) = 16.8

2r(22 - 7/7) = 16.8

2r(15/7) = 16.8

30r = 16.8 * 7

30r = 117.6

r = 117.6/30

r = 3.92 cm.

Therefore the radius of the circle = 3.92cm.

Major steps that were taken towards decentralisation in 1992 were:

• It was made obligatory to hold elections for choosing members of local governmental institutions
• Seats were reserved for people belonging to scheduled castes and scheduled tribes and other backward classes in local bodies.
• One-third of the seats are reserved for women.
• State Election Commission was constituted in the states for holding elections in government bodies.
• It was made mandatory for the State Governments to share powers and revenues with local bodies.

Power is consumed across the resistor when current flows through it.  

The formula for Power consumed, P = VI

P = V x (V/R) {because according to Ohm’s Law, V = IR}

So let  = Power consumed across resistor 

 Power consumed across resistor 

Therefore ratio of the electric power consumed by R and 2R,

Container tag consists of opening tag+content+closing tag . While empty tag is tag without content or a closing tag.

Container tags are used to enclose texts, images etc. Like <body> , <div> etc are container tags as we put some content inside them.

But empty tags are used to insert something. Like if we want to insert an image or a line-break or a horizontal-line , we use <img />, <br />, <hr /> tags respectively.

Empty tags can be used inside the container tags. Like you can insert a line-break or an image anywhere in your page but it should be inside some container tag.

PC mean personal computer

Switches are used within individual networks. To communicate with another network, the network would use a device called a router. A router is a special communications processor used to route packets of data through different networks, ensuring that the message sent gets to the correct address.

Basic Network Hardware

• Routers. A router is a connecting device that transfers data packets between different computer networks. ...
• Repeaters, Hubs, and Switches. Repeaters, hubs and switches connect network devices together so that they can function as a single segment. ...
• Bridges. A bridge connects two separate Ethernet network segments. ...
• Gateways.

Large scale participation of women was an important feature of the Civil Disobedience Movement. During the Salt March, thousands of women came out of  their homes to listen to the speeches of Gandhi. women participated in protest marches, manufactured salt, and picketed foreign cloth and liquor shops. Many went to jail. While women of high caste families participated from urban areas, in rural areas they came from rich peasant households. 

But this did not bring about any radical changes in the positin of women. For a long time the Congress was reluctant to allow women to hold any position of authority within the organisation.