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What is meant by homologous series of carbon compounds?
Concept: Homologous Series of Carbon Compound
Name the human male reproductive organ that produces sperms and also secretes a hormone. Write the functions of the secreted hormone.
Concept: Human Reproduction
Describe in brief the structure of placenta
Concept: Human Reproduction
State the laws of refraction of light. Explain the term 'absolute refractive index of a medium' and write an expression to relate it with the speed of light in vacuum.
Concept: Refractive Index
On what factors does the resistance of a conductor depend?
Concept: Factors Affecting the Resistance of a Conductor
Which one of the following countries has two party system?
Concept: How Many Parties Should We Have?
As Valli, make a diary entry sharing your joys and disappointments during the bus ride.
Concept: From the Diary of Anne Frank
Read the passage given below-
| (1) | Milkha Singh, also known as The Flying Sikh, was an Indian track and field sprinter who was introduced to the sport while serving in the Indian Army. He is the only athlete to win gold in 400 metres at the Asian Games as well as the Commonwealth Games. He also won gold medals in the 1958 and 1962 Asian Games. He represented India in the 1956 Summer Olympics in Melbourne, the 1960 Summer Olympics in Rome and the 1964 Summer Olympics in Tokyo. He was awarded the Padma Shri, India's fourth-highest civilian honour, in recognition of his sporting achievements. |
| (2) | The race for which Singh is best remembered is his fourth-place finish in the 400 metres final at the 1960 Olympic Games. He led the race till the 200 m mark before easing off, allowing others to pass him. Singh's fourth-place time of 45.73 seconds was the Indian national record for almost 40 years. |
| (3) | From beginning that saw him orphaned and displaced during the partition of India, Singh became a sporting icon in the country. In 2008, journalist Rohit Brijnath described Singh as "the finest athlete India has ever produced". |
| (4) | He was disappointed with his debut performance at the 1956 Melbourne Olympics. "I returned to India, chastened by my poor performance in Melbourne. I had been so excited by the prospects of being part of the Indian Olympics team, but, hadn't realized how strong and professional the competition would be. My success in India had filled me with a false sense of pride and it was only when I was on the track that I saw how inconsequential my talents were when pitted against superbly fit and seasoned athletes. It was then that I understood what competition actually meant, and that if I wanted to succeed on the international arena, I must be prepared to test my mettle against the best athletes in the world." |
| (5) | Then he decided to make sprinting the sole focus of his life. "Running had thus become my God, my religion and my beloved". "My life during those two years was governed by strict rules and regulations and a self-imposed penance. Every morning I would rise at the crack of dawn, get into my sports kit and dash off to the track, where I would run two or three miles cross-country in the company of my coach." |
| (6) | On how he pushed himself through the tough days of vigorous training. "I practiced so strenuously that often I was drained of all energy, and there were times when I would increase my speed to such an extent that after my rounds, I would vomit blood or drop down unconscious through sheer exercise. My doctors and coaches warned me, asked me to slow down to maintain my health and equilibrium but my determination was too strong to give up. My only focus was to become the best athlete in the world. But then images of a packed stadium filled with cheering spectators, wildly applauding me as I crossed the finishing line, would flash across my mind and I would start again, encouraged by visions of victory." |
Based on your reading answer any five questions from the six given below: (5)
- What is Milkha Singh known as? What realization did Milkha Singh have when he was on the track during the Melbourne Olympics?
- List any two of Milkha Singh's achievements.
- What strict rules and regulations did Milkha Singh follow?
- State two consequences of his hard and strenuous practice.
- What motivated Milkha Singh to become the best athlete in the world?
- Explain the phrase 'I would start again' in the last sentence.
Concept: Unseen Passage Comprehension
Read the following excerpt from a Case Study. J.K. Rowling - A Journey.
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The story of Joanne Kathleen Rowling's near magical rise to fame is almost as well known as the characters she creates. Rowling was constantly writing and telling stories to her younger sister Dianne. "The first story I ever wrote down was about a rabbit called Rabbit." Rowling said in an interview. "He got measles and was visited by his friends including a giant bee called Miss Bee. And ever since Rabbit and Miss Bee, I have always wanted to be a writer, though I rarely told anyone so. However, my parents, both of whom come from impoverished backgrounds and neither of whom had been to college, took the view that my overactive imagination was an amusing personal quirk that would never pay a mortgage or secure a pension. A writer from the age of six, with two unpublished novels in the drawer, she was stuck on a train when Harry walked into her mind fully formed. She spent the next five years constructing the plots of seven books, one for every year of his secondary school life. Rowling says she started writing the first book, Harry Potter and the Sorcerer's Stone, in Portugal, where she was teaching English. At first nobody wanted to publish Harry Potter. She was told that plot was too complex. Refusing to compromise, she found a publisher. In 1997 Rowling received her first royalty cheque. By book three, she had sky rocketed to the top of the publishing world. A row of zeroes appeared on the author's bank balance and her life was turned upside down. Day and night she had journalists knocking on the unanswered door of her flat. Rowling's quality control has become legendary, as her obsession with accuracy. She's thrilled with Stephen Fry's taped version of the books and outraged that an Italian dust jacket showed Harry minus his glasses. "Don't they understand that the glasses are the clue to his vulnerability." Annual earnings of J.K. Rowlin from 2010 to 2019
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On the basis of your understanding of the passage answer any five of the six questions given below. (5)
- Explain J. K. Rowling's 'near magical rise to fame'.
- What reason did the publishers give for rejecting Rowling's book?
- What was the drawback of achieving fame?
- Why was Rowling outraged with the Italian dust jacket?
- Find a word in the last para that means the same as 'insecure/helpless'.
- According to the graph, how many years did it take Rowling to become very successful?
Concept: Unseen Passage Comprehension
पूरक पाठ्य पुस्तक पर आधारित निम्नलिखित प्रश्न का उत्तर लगभग 60 शब्दों में दीजिए -
हरिहर काका और टोपी शुक्ला दोनों ही भरे-पूरे परिवार से संबंधित होते हुए भी अकेले थे। दोनों के अकेलेपन के कारणों की समीक्षा कीजिए।
Concept: हरिहर काका
If AD and PM are medians of triangles ABC and PQR, respectively where ΔABC ~ ΔPQR, prove that `("AB")/("PQ") = ("AD")/("PM")`.
Concept: Criteria for Similarity of Triangles
A bucket open at the top is in the form of a frustum of a cone with a capacity of 12308.8 cm3. The radii of the top and bottom circular ends are 20 cm and 12 cm, respectively. Find the height of the bucket and the area of metal sheet used in making the bucket. (use π = 3.14)
Concept: Heights and Distances
A pole 6 m high casts a shadow `2sqrt(3)` m long on the ground, then the Sun’s elevation is ______.
Concept: Heights and Distances
In a circle of radius 21 cm, an arc subtends an angle of 60° at the centre. Find the length of the arc. (Use π = `22/7`)
Concept: Area of Circle
In a circle of radius 21 cm, an arc subtends an angle of 60° at the centre. Find the area of the sector formed by the arc. (Use π = `22/7`)
Concept: Area of Circle
When you add sodium hydrogen carbonate to acetic acid in a test tube, a gas liberates immediately with brisk effervescence. Name this gas. Describe the method of testing this gas.
Concept: Important Salts in Daily Life > Preparation and Uses of Baking Soda
State the reason why carbon can neither form \[\ce{C^4+}\] cations nor \[\ce{C^4−}\] anions but forms covalent compound.
Concept: The Covalent Bond
Why do soaps not form lather in hard water?
Concept: Soap
State the reason why carbon can neither form \[\ce{C^4+}\] cations nor \[\ce{C^4−}\] anions but forms covalent compound.
Concept: The Covalent Bond
Name the parts of the human female reproductive system where
i. fertilisation takes place
ii. implantation of the fertilised egg occurs
Concept: Human Reproduction
