West Bengal Board JC Bose A Beautiful Mind Question Answer Class 7 Lesson 9 | Activity Solution
J.C. Bose: A Beautiful Mind
Activity 1
Choose the correct answer from the given options:
(a) Jagadish Chandra Bose studied in –
(i) Hindu School
(ii) Hare School
(iii) Ballygunge Government School
(b) Bose met Father Lafont at –
(i) Cambridge
(ii) London
(iii) St. Xavier's College
(c) Bose graduated in B.Sc. from –
(i) University of Cambridge
(ii) University of Oxford
(iii) University of London
Activity 2
Fill in the chart with information from the text:
| Year | Event |
| 1858 | J.C. Bose was born |
| 1869 | Bose joined Here School |
| 1881 | Joined St.Xavier's College |
| 1884 | He received Natural Science Tripos |
| 1885 | Joined Presidency College |
| 1895 | Demonstration at Town Hall |
Activity 3
Complete the following statements with information from the text:
(a) Bose's father used to work as a Deputy Magistrate in Faridpur, Burdwan and in other places.
(b) Jagadish Chandra Bose’s father, Bhagwan Chandra Bose, was the leader of the Brahmo Samaj
(c) In his school days Bose's playmates were the son of the Muslim attendant of my father, and the son of a fisherman.
(d) Bose went to England to secure admission in Christ College, Cambridge, to study Natural Science.
Activity 4
Answer the following questions:
(a) Why did Jagadish Chandra Bose receive his early education in a Vernacular school?
Answer – His father believed that one must know one's mother tongue before learning any other language.
(b) What did Bose's mother do when he brought his friends home from school?
Answer – When Bose returned home from school accompanied by his school fellows, his mother welcomed and fed all of them without discrimination.
(c) Who was Lafont? How did he influence Bose?
Answer – Lafont was Jesuit Father. He played a significant role in developing Bose's interest in natural science.
(d) Why did Bose refuse to accept his salary?
Answer – Bose refused to accept his salary as a sign of protest.
JC Bose A Beautiful Mind Question Answer
Activity 5
Match the single words with their expanded forms:
| single word form | expanded forms |
| 1. astronomy | a place where books are kept (2) |
| 2. library | a garden of many fruit trees (5) |
| 3. garage | a person who handles cash (6) |
| 4. psychology | study of stars and planets (1) |
| 5. orchard | study of human mind (4) |
| 6. cashier | a place to keep cars (3) |
Activity 6
Identify which of the following statements are ‘True’ and which are ‘False’. Give a supporting statement for your answer:
(a) Cresco graph was invented by Marconi. [False]
Supporting statement – Bose had invented several sensitive instruments. One of them is the Cresco graph
(b) Marconi got the patency right for wireless telegraphy. [True]
Supporting statement – Marconi who got the patent for the invention of wireless telegraphy.
(c) Bose was awarded Knighthood in 1919. [False]
Supporting statement – he was awarded Knighthood by the British government in 1917.
(d) No other Bengali writer had written science fiction before J.C. Bose. [True]
Supporting statement – In fact, he was the first writer of science fictions in Bengal.
Activity 7
Complete the following statements:
(a) Crescograph is used to measure the growth rate of plants.
(b) Bose proved that plants are sensitive to heat, cold, light, noise and other external stimuli, just like human beings.
(c) In 1917 Bose founded the 'Bose Institute' at his own house in Calcutta.
(d) Bose Institute was founded in November 1917.
Activity 8
Answer the following questions:
(a) 'Bose had invented several sensitive instruments'. Name a 'sensitive instrument' invented by J.C. Bose. What is its use?
Answer – One of them is Crescograph. It is used to measure the growth rate of plants.
(b) What did Bose prove by his experiments on plants?
Answer – Bose proved that plants are sensitive to heat, cold, light, noise and other external stimuli, just like human beings.
(c) Do you think Bose was uninterested about securing patency right? Why?
Answer – Yes, he was uninterested in securing patency right. His intention was to make his inventions public in order to allow others to advance further along the lines of his research.
(d) What were the various awards and honours conferred on Bose? Answer – He was conferred many awards like ‘Knighthood’ 'Fellow of the Royal Society', 'Companion of the Order of the Indian Empire' etc.
(e) Name some of his books and publications.
Answer – Some of his famous books are Response in the Living and the Non – living (1902), The Nervous Mechanism of Plants (1926), Major Mechanism of Plants (1928), Niruddesher Khoje(1996), etc.
JC Bose A Beautiful Mind Question Answer
Activity 9
Read the following passage and underline the adverb. An example is given.
Shanti is a young girl. She lives in a remote village with her family. Her school is five miles away from there. But Shanti attends her school daily. She stood third in her class in the previous examination she believes that she can do better. she is now concentrating on her studies more seriously. Shanti never behaves rudely with her classmates. So they like her she follows teachers attentively in the class. Therefore the teachers really like her. They often enquire whether she is facing any problem. Why do many teachers think that Shanti is the best girl in the class? It is because Shanti has faced challenges of life bravely.
Activity 10
Now put the underlined adverbs from the above passage in the chart according to their functions. One is done for you.
| Adverb | Function |
| There | Indicates the place where the action happens. |
| Never, often, daily, now | indicates how often something happens |
| Therefore, because | indicates why the action is performed |
| Seriously, really, bravely, rudely | indicates how or in what manner the action is performed |
| Why, When, How, Who, | used to ask a question |
Activity 11
Transform the degree of adjectives of the following sentences as directed:
(a) Plants are as sensitive as animals. (Change into comparative degree)
Answer – Animals are not more sensitive than Plants.
(b) Simla is cooler than Kolkata. (Change into positive degree)
Answer – Kolkata is not as cool as Simla.
(c) Umesh Yadav is the fastest bowler in the Indian cricket team. (Change into comparative degree)
Answer – No other bowler in the Indian cricket team is faster than Umesh Yadav.
(d) Ishant Sharma is taller than any other Indian cricketer. (Change into superlative degree)
Answer – Ishant Sharma is the tallest among Indian cricketers.
(e) Mt. Everest is the highest mountain in the world. (Change into positive degree)
Answer – No other mountain in the world is as high as Mt. Everest.
JC Bose A Beautiful Mind Question Answer
Activity 12
In this lesson you have read the biography of a great Indian scientist. Now write a biography (in about seventy words) of Prafulla Chandra Roy, who was another great Indian scientist. You can use the following hints:
[Birth: 1861, Khulna, now in Bangladesh – Education: village pathsala, Hare School, Albert School, passed Entrance examination (1879), F.A. from Metropolitan College(1882) – won Gilchrist scholarship (1882) – went to London – B.Sc. from Edinburgh University (1882 – 84), D.Sc. Edinburgh University – Professor of Presidency College (1889) – First to prepare Mercurous Nitrite in laboratory (1896) – established Bengal Chemicals (1901) – joined Science College as Palit Professor – death: 1944]
Acharya Prafulla Chandra Roy
Mother India is the birthplace of many great persons. They glorified their country by their noble activities.
Acharya Prafulla Chandra Roy was one of the gems. He was a great scientist of that time. He came of on 2nd August in the year of 1861 at Khulna in Bangladesh.
He was a brilliant and a meritorious student from his early childhood. He started his early education from village pathsala, Hare School, Albert School, passed Entrance examination (1879). Then he studied in Hare School in Kolkata. He passed F.A. from Metropolitan College (1882) and he was awarded with Gilchrist Scholarship (1882). He went to London and took B.Sc. from Edinburgh University (1882 – 84), D.Sc. Edinburgh University
He was appointed as a professor of Chemistry at Presidency College in Kolkata (1889). He had great affection to his students.
He invented first to prepare Mercurous Nitrite in laboratory (1896). He set up Bengal Chemicals in Kolkata.
Besides a scientist, he was a good person too. He lived plainly. He thought highly. He loved sympathetic to his students. He lived a life of a bachelor. He joined Science College as Palit Professor
This great person passed away on 16th July in 1944. He left a large number of talented students. He is no more but immortal to us for his contributions in the field of science.
Activity 13
You have come to know that the local postman has delivered your letter to your neighbor’s house by mistake. Write a letter to the post office with a request to return the letter to you.
Answer:
New Kolkata
June 21, 2022
To,
The Post Master
General Post Office
Kolkata 700002
Subject: Return of the letter
Respected Sir / Madam,
I would like to draw your kind attention on the fact that the postman of our area is very irregular in his duties. He does not deliver the letters regularly and properly. He throws the letters carelessly. He gives our letters to the wrong persons. Sometimes he misbehaves the people.
People face many difficulties because of his misbehavior. A student missed to go in his interview because he got his interview call after the date of the interview.
Hence I request you to take necessary actions against the postman so that people may get proper and good services.
Thanking you in anticipation
Yours Faithfully
sumona