Refractive index of a medium is defined as the factor by which speed of light reduces as compared to the speed of light in vacuum.

→ More (less) refractive index implies less (more) speed of light in that medium, which therefore is called denser (rarer) medium.

Calculation :

The refraction index, n, of a transparent medium is defined as the ratio of speed of light in vacuum to the speed of light in that medium.  The formula is n= c​/v

where the speed of light c=3×10⁸m/s and v is the speed of light in the desired medium which is given as v=2.4×10⁸m/s.

Therefore, n=3×10⁸m/s/ 2.4×10⁸m/s​=1.25.

Hence, the refractive index of the transparent medium is 1.25.

Refractive index of glass = speed of light in vacuum/ speed of light in glass ​
=3×10⁸m/s​ / 2×10⁸ km/s
=1.5

When red litmus paper is placed into a basic substance, it will turn blue. If it comes in contact with an acidic or neutral substance, it will remain red. Red litmus paper is meant to test only for an alkaline pH level. The blue litmus will turn red or pink when it comes into contact with an acidic solution below pH 4.5. Between 4.5 and 8.3 the paper will be purple. ... Litmus paper is NOT used to determine the pH level of a solution.

Higher castes were invariably of higher economic status while lower castes were always witnessed lower in economic status. In modem age, this correlation is getting weaker as we see rich and poor people are equally found in every caste. In the hierarchy of caste system each caste has a specific place and social status. There has been a close correlation between social or caste status and economic status. The high' castes were almost invariably of high economic status. On the other hand, the “low' caste were almost always of low economic status.

The objectives are as follows : To provide chances for students to gain leadership skill, professional skills, qualification an even employment opportunity. To develop social qualities such as tolerance, sympathy, cooperation, group cohesion are developed among the participants during intramural tournament. 

The objectives of the Intramural Sports Program are to provide

• Opportunities for individual development through various activities.
• Opportunities for social contact and the development of lasting friendships.
• Leadership and fellowship opportunities through participation.

The royal people were buried with much gold because they believed in an afterlife. They thought that there was life after death and all the gold would help them to live in luxury.

The royal people were buried with much gold because they believed in an afterlife. They thought that there was life after death and all the gold would help them to live in luxury.

Bishop Always Ready to Help Others
The Bishop is always ready to help the needy pa-sons of his parish. He goes to attend to Marie’s mother who is feeling poorly. He is out in cold without supper. He sells his salt cellars to help Mere Gringoire to pay her rents. His sister Persome feels that her brother is the dupe of every idle vagabond and old lying woman. He has sold his land, his furniture and spent all his savings to help others. Persome feels that her brother’s generosity and innocence is being misused by the people of his parish. But the Bishop thinks that this world is full of suffering and he can do very little to help the sufferers.

Convict Enters Stealthily with a Knife
The convict enters with a long knife and seizes the Bishop from behind. He warns the Bishop not to play any trick with him. He is too old a bird to be caught with chaff. Persome is frightened when she sees a knife in his hand. The convict is staring at them like a wild beast. The Bishop asks Persome to give company to the guest at supper. The convict eats greedily and throws a bone on the floor. Persome leaves the Bishop with the convict and goes to her room. Then the convict narrates his story.

Convict Narrates His Tragic Story
Once the convict had a little hut and a wife. Then came the bad year. He was out of job and had no money. His wife Jeanette fell ill. She was dying. He stole to buy her food. He was arrested. He pleaded to them why he stole but they laughed at him. He was sentenced to ten years in the prison hulks. The night he was sentenced, he was told that Jeanette was dead.

Life in ‘Hell’
He was no more a man now. He became a wild beast. The jail employees chained him like a wild beast. They lashed him like a hound. He was fed on filth and covered with vermin. They took away his soul and gave a devil in its place. But one day they were careless and he escaped.

Convict Steals Bishop’s Silver Candlesticks
The convict comes to know that he is with a Bishop. He warns him not to try to convert him. He doesn’t want any damn religion and the church. The Bishop asks him to go to bed. When left alone, the convict sees the silver candlesticks. He knows that they were given to the Bishop by his mother. His heart goes soft. But he soon hardens himself, steals the candlesticks and goes out into the darkness.

Convict is Caught and Brought Back to Bishop
When Persome and the Bishop get up next morning, they find the candlesticks and the convict missing. Soon they hear a knocking. A sergeant enters with three soldiers and the convict in chains. The sergeant tells that they found him (convict) walking on the road with the candlesticks. They arrested him on suspicion. They identified the candlesticks of the Bishop and so they brought them there to him. The Bishop saves the convict by declaring that those candlesticks were given to him as a gift. The convict is freed again.

Convict is Transformed
The Bishop saves the convict from going to “hell” again. This leaves a deep impression on the convict. He is a transformed man now. He is no more a wild beast. He sobs and repents. The Bishop gives him the candlesticks and the convict takes them in absolute amazement. The Bishop shows him a very lonely path through the woods at the back of his cottage leading to Paris. The soldiers don’t like lonely paths at night. The Bishop blesses the convict and tells him that “this poor body is the Temple of the Living God”.

Tut was just a teenager when he died. He was laid to rest in his grave laden with gold and finally forgotten. The tomb was discovered only in 1922. The world has been speculating about Tut’s fate. Some even didn’t rule out the possibility of his murder. A CT scan was done on Tut to offer new clues about his life and death. The other aim was to provide an accurate ‘forensic reconstruction’ of the young Pharaoh.

Tut was just a teenager when he died. He was laid to rest in his grave laden with gold and finally forgotten. The tomb was discovered only in 1922. The world has been speculating about Tut’s fate. Some even didn’t rule out the possibility of his murder. A CT scan was done on Tut to offer new clues about his life and death. The other aim was to provide an accurate ‘forensic reconstruction’ of the young Pharaoh.

Since 2017, the minimum age is 18. Before 2017 females could marry from 16, with parental consent. Varies by state. The General Law on the Rights of Children and Adolescents 2014 establishes 18 years as the general age of marriage, but allows girls to marry at 14 and boys at 16 with parental consent.

The term Worksheet used in Excel documents is a collection of cells organized in rows and columns. It is the working surface you interact with to enter data. Each worksheet contains 1048576 rows and 16384 columns and serves as a giant table that allows you to organize information.

Separation of hydrogen isotopic water by graphene oxide membrane in membrane distillation was carried out for the first time.

An effective functionalization method of graphene oxide membrane was developed.

Near-super hydrophobic graphene oxide membrane surface was achieved.

Near-super hydrophobic membrane surface and synergistic effect account for the enhanced separation factor.

Making a basic web page using HTML

1. Step 1: Creating a new HTML document. The first thing to do is actually create a new HTML document that will become our web page. ...
2. Step 2: Add a title to your HTML document. ...
3. Step 3: Add some text and an image to the web page. ...
4. Your first website using HTML. The good news is that you too can use them freely when creating a website with HTML and CSS. Quite frankly, you can customize any tag you add to your page's structure by assigning any number of classes to it. If you want to see the complete list of the classes available, you can open the main creative.

The historians face several difficulties in using manuscripts. There was no printing press in those days so scribes copied manuscripts by hand. Manuscript copying is not an easy job. As scribes copied manuscripts, they also introduced small changes—a word here, a sentence there. These small differences grew over centuries of copying until manuscripts of the same text became substantially different from one another. This is a serious problem because we rarely find the original manuscript of the author today. We are totally dependent upon the copies made by later scribes. As a result historians have to read different manuscript versions of the same text to guess what the author had originally written.