What were Papa and Mama doing when the intruder broke in?

They had gone to Kharagpur for a wedding

Who was the intruder Boppa?

The sweeper who cleaned the compounds of the houses

Who came to help the children when they shouted?

Mrs. Sharma and her husband and Dr. Mohan

What did Anand believe happened to Boppa?

He went through time in the time machine

Why did Anand's burglar alarm fail to work as intended?

The alarm was designed to activate only when the door was opened gently — which is how Papa always opened the door

The water bag fell off on its own

What does the phrase 'inventive binges' tell us about Anand's personality?

He was passionate about inventions to the point of obsession — he would dismantle everything in the house to build something

He only invented things sometimes

Why did Papa lock away his tool box after the burglar alarm incident?

To prevent Anand from taking apart gadgets for his next invention project

What clue confirmed that an intruder had been in the house?

The green scarf near the panel of switches

What was the eventual fate of the time machine?

It was dismantled because Papa thought it wasn't safe

Why did Anand send Boppa to 'Papa's room' which was actually his own room?

To confuse Boppa and buy time to think of something

To show Boppa where the money was

What does the story suggest about Anand's character?

Despite causing chaos Anand is genuinely creative persistent and ultimately helps save the situation through his accidental invention

Why is the narrator Anita a good choice as narrator?

As Anand's older sister she provides an outsider's amused yet affectionate perspective on her brother's eccentricities

What does the time machine incident suggest about the boundary between imagination and reality in the story?

The story deliberately leaves it ambiguous — Boppa's disappearance could be supernatural or simply an escape while the machine's humming allowed it

How does Anita's attitude toward Anand change during the intruder episode?

She goes from being mildly annoyed to terrified and then genuinely grateful that Anand's presence of mind buys them time

She blames him for the situation

How does the story use humour to soften the tension of the intruder scene?

The humour disappears during the intruder scene

The absurdity of Anand's time machine becoming an accidental burglar deterrent provides comic relief even as the children are genuinely frightened — blending tension and comedy

Analyse the role of the time machine as a plot device in the story.

The time machine serves both as evidence of Anand's obsessive creativity and as an accidental hero — its mysterious humming and effects conveniently resolve the intruder crisis

The time machine fails completely

The time machine is scientifically accurate

How does the narrator use irony in describing Anand's inventions?

Anita describes Anand's inventions as 'great' while showing repeatedly how they fail or go wrong — creating a gentle irony that characterises their sibling relationship

Anand's inventions work perfectly

What does the story say about the relationship between failure and creativity?

Anand's repeated failures do not diminish his creativity — each failed invention leads to a more ambitious next one — suggesting failure is part of the creative process

Failure means Anand is not really creative

Creativity never involves failure

Compare Anand's attitude towards his inventions and how others (Papa Anita) view them. What tension does this create?

Everyone agrees on the inventions

Anand sees his inventions as serious scientific achievements while others see them as sources of chaos — this tension drives the comedy and also raises the question of whether genius is always immediately recognised

Others support Anand completely

Anand does not care what others think

What deeper theme does the story explore about genius and recognition?

Geniuses are always recognised immediately

True creativity is often dismissed as dangerous or eccentric by those around the creator — Anand's genius is treated as a nuisance until it accidentally saves the day

How does the story balance realism and fantasy in the treatment of the time machine?

By leaving Boppa's disappearance unexplained the story creates a magical space where the time machine might have worked — blending the ordinary family story with a touch of the fantastical

The time machine is proven to have worked

What does the story suggest about children's imagination and scientific curiosity?

They are dangerous and should be controlled

Children's imagination — even when it causes problems — is a valuable and powerful force that should be nurtured rather than simply suppressed

Scientific curiosity is only for adults

NCERT Solutions Class 7 English Chapter 3.1 – My Brother’s Great Invention

Name: My Brother’s Great Invention – Class 7 English
Uploaded: 2026-07-23T04:34:42+00:00
Description: Anand, a young inventor, creates a burglar alarm and later a time machine, causing chaos at home. Despite the mishaps, his creativity and adventurous spirit shine through, promising more inventions in the future.

Class 7 English

Last Updated: 23 July 2026

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Chapter Introduction

Anand, a young inventor, creates a burglar alarm and later a time machine, causing chaos at home. Despite the mishaps, his creativity and adventurous spirit shine through, promising more inventions in the future.

हिंदी में (Hindi)

अनंद, एक युवा आविष्कारक, चोरी-रोकने वाला अलार्म और बाद में टाइम मशीन बनाता है, जिससे घर में हलचल मच जाती है। हादसों के बावजूद, उसकी रचनात्मकता और साहसी भावना उजागर होती है, और भविष्य में और आविष्कारों का वादा करती है।

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Important Points

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Practice MCQ Questions (28 questions)

Q1. What was the name of the narrator's brother in 'My Brother's Great Invention'?

Q2. What was the narrator Anita's first invention story about?

Q3. How did the burglar alarm work?

Q4. Who was soaked by the burglar alarm?

Q5. What film inspired Anand to build a time machine?

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Frequently Asked Questions (FAQ)

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Tough Words (Glossary)

Roared

Meaning: Spoke loudly and angrily

अर्थ: गरजना/चिल्लाना

"He roared at his son for being late."

Burglar

Meaning: A thief who breaks into houses

अर्थ: चोर/सेंधमार

"The burglar was caught by the police."

Alarm

Meaning: A warning sound of danger

अर्थ: सायरन/सतर्क घंटी

"The fire alarm rang loudly."

Racket

Meaning: A loud and disturbing noise

अर्थ: शोरगुल

"The children made a terrible racket."

Sopping

Meaning: Completely wet

अर्थ: भीगा हुआ

"His clothes were sopping after the rain."

Scowling

Meaning: Looking angry with a frown

अर्थ: त्योरी चढ़ाना

"She was scowling at her brother."

Grimly

Meaning: In a serious or worried way

अर्थ: गंभीरता से

"He nodded grimly at the news."

Soothing

Meaning: Making someone calm and relaxed

अर्थ: शांत करने वाला

"Her soothing words helped the child."

Vanished

Meaning: Disappeared suddenly

अर्थ: गायब हो जाना

"The magician vanished from the stage."

Nerves

Meaning: Strong feelings of worry or stress

अर्थ: घबराहट

"She controlled her nerves before the speech."

Tinkering

Meaning: Fixing or making small changes to machines

अर्थ: छेड़छाड़ करना

"He spent the day tinkering with his bike."

Gadgets

Meaning: Small machines or devices

अर्थ: उपकरण

"Mobile phones are useful gadgets."

Blueprint

Meaning: A detailed plan or drawing

अर्थ: नक्शा

"The engineer showed the blueprint of the bridge."

Elaborate

Meaning: Detailed and complicated

अर्थ: विस्तृत

"She gave an elaborate explanation."

Clanging

Meaning: A loud metallic sound

अर्थ: खनखनाहट

"The pots fell with a clanging noise."

Loftily

Meaning: In a proud or superior way

अर्थ: अहंकार से

"He loftily declared his success."

Stealthily

Meaning: Quietly and secretly

अर्थ: चुपके से

"The thief entered the house stealthily."

Sceptical

Meaning: Doubting or not believing easily

अर्थ: संदेहपूर्ण

"She was sceptical about his story."

Frantic

Meaning: Wild with fear or excitement

अर्थ: घबराया हुआ

"The child’s mother was frantic with worry."

Panel

Meaning: A flat board with controls or switches

अर्थ: पैनल/स्विचबोर्ड

"The control panel operates the machine."

Savage

Meaning: Wild and untamed

अर्थ: जंगली/खूंखार

"He looked like a savage after the fight."

Crestfallen

Meaning: Sad and disappointed

अर्थ: निराश

"He looked crestfallen after losing the match."

Fortnight

Meaning: A period of two weeks

अर्थ: पखवाड़ा

"She stayed there for a fortnight."

Groggily

Meaning: In a sleepy or weak way

अर्थ: सुस्त ढंग से

"He got up groggily after a nap."

Holler

Meaning: To shout loudly

अर्थ: चिल्लाना

"The coach hollered instructions to the team."

Ruffianly

Meaning: Behaving like a violent criminal

अर्थ: गुंडे जैसा

"The ruffianly fellow scared the children."

Brandishing

Meaning: Waving something (like a weapon) threateningly

अर्थ: लहराना

"The thief was brandishing a knife."

Cudgel

Meaning: A thick, heavy stick used as a weapon

अर्थ: डंडा

"The guard carried a cudgel for safety."

Eerie

Meaning: Strange and frightening

अर्थ: अजीब और डरावना

"We heard an eerie sound in the night."

Intruder

Meaning: A person who enters a place without permission

अर्थ: घुसपैठिया

"The police caught an intruder in the house."

NCERT Solutions Class 7 English Chapter 3.1 – My Brother’s Great Invention

Chapter Introduction

Watch Video Lecture

Important Points

Practice MCQ Questions (28 questions)

Q1. What was the name of the narrator's brother in 'My Brother's Great Invention'?

Q2. What was the narrator Anita's first invention story about?

Q3. How did the burglar alarm work?

Q4. Who was soaked by the burglar alarm?

Q5. What film inspired Anand to build a time machine?

Q6. What were Papa and Mama doing when the intruder broke in?

Q7. Who was the intruder Boppa?

Q8. What was Boppa wearing around his neck?

Q9. Who came to help the children when they shouted?

Q10. What did Anand believe happened to Boppa?

Q11. Why did Anand's burglar alarm fail to work as intended?

Q12. What does the phrase 'inventive binges' tell us about Anand's personality?

Q13. Why did Papa lock away his tool box after the burglar alarm incident?

Q14. What clue confirmed that an intruder had been in the house?

Q15. What was the eventual fate of the time machine?

Q16. Why did Anand send Boppa to 'Papa's room' which was actually his own room?

Q17. What does the story suggest about Anand's character?

Q18. Why is the narrator Anita a good choice as narrator?

Q19. What does the time machine incident suggest about the boundary between imagination and reality in the story?

Q20. How does Anita's attitude toward Anand change during the intruder episode?

Q21. How does the story use humour to soften the tension of the intruder scene?

Q22. Analyse the role of the time machine as a plot device in the story.

Q23. How does the narrator use irony in describing Anand's inventions?

Q24. What does the story say about the relationship between failure and creativity?

Q25. Compare Anand's attitude towards his inventions and how others (Papa Anita) view them. What tension does this create?

Q26. What deeper theme does the story explore about genius and recognition?

Q27. How does the story balance realism and fantasy in the treatment of the time machine?

Q28. What does the story suggest about children's imagination and scientific curiosity?