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 _________________________________
Ans: Deputy Magistrate.
(b) ____________________________________ was the leader of the Brahmo Samaj
Ans: Jagadish Chandra’s father, Bhagwan Chandra Bose
(c) In his school days Bose’s playmates were _______________________________
Ans: a Muslim boy and the son of a fisherman
(d) Bose went to England to ____________________________________________
Ans: study Natural science.
Activity 4
Answer the following questions:
(a) Why did Jagadish Chandra Bose receive his early education in a Vernacular school?
Ans. 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?
Ans. 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?
Ans. 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?
Ans. Bose refused to accept his salary as a sign of protest.
Activity 5
Match the single words their expended forms:
| Single word form | Expanded forms |
| Astronomy | A place where books are kept |
| Library | A garden of many fruit trees |
| Garage | A person who handles cash |
| Psychology | Study of stars and planets |
| Orchard | Study of human mind |
| Cashier | A place to keep cars |
Ans:-
Astronomy – Study of stars and planets
Library – A place where books are kept
Garage – A place to keep cars
Psychology – Study of human mind
Orchard – A garden of many fruit trees
Cashier – A person who handles cash
Activity 6
Identify which of the following statements are True and which are False. Give a supporting statement for your answer:
(a) Crescograph was invented by Marconi.
Ans : F
S.S>> Bose had invented several sensitive instruments. One of them is the Crescograph –
(b) Marconi got the patency right for wireless telegraphy.
Ans : T
S.S>> Marconi who got the patent for the invention of wireless telegraphy.
(c) Bose was awarded Knighthood in 1919.
Ans : F
S.S>> he was awarded Knighthood by the British government in 1917.
(d) No other Bengali writer had written science fiction before J.C. Bose.
Ans : T
S.S>> In fact, he was the first writer of science fictions in Bangla.
Activity 7
Complete the statements :
(a) Crescograph is used to __________________________
(b) Bose proved that plants are ______________________
(c) In 1917 Bose founded ___________________________
(d) Bose institute was founded in _____________________
Ans:-
(a) measure the growth rate plant.
(b) sensitive to heat, light noise and other external stimuli just stimuli like humans.
(c) the ‘Bose Institute.’
(d) Calcutta at his own house.
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?
Ans. 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?
Ans. 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?
Ans. 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?
Ans. 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.
Ans. 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.
Activity 11
Transform the degree of adjectives of the following sentences as directed:
(a) Plants are as sensitive as animals. (change into comparative degree)
Ans. Animals are not more sensitive than Plants.
b) Simla is cooler than Kolkata. (change into positive degree)
Ans. Kolkata is not as cool as Simla.
(c) Umesh Yadav is the fastest bowler in the Indian cricket team.(change into comparative degree)
Ans. Umesh Yadav is faster than any other bowler in the Indian cricket team.
(d) Ishant Sharma is taller than any other Indian cricketer. (change into superlative degree)
Ans. Ishant Sharma is the tallest Indian cricketer.
(e) Mt. Everest is the highest mountain in the world. (change into positive degree)
Ans. No other mountain in the world is as high as Mt. Everest.