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B. find him a job to get over his financial hardship.

D. bring money.

Answer: C. loneliness.

As per the man, he had met Bepin Babu at Ranchi. The man stared at Bepin Babu in disbelief because Bepin Babu did not recognise him even though he was sure that he knew him and had met him in Ranchi.

Bepin Babu said that he spent the Puja holidays in October' 58 with a friend in Kanpur.

Chunilal was an old schoolmate of Bepin Babu. He had been having a rough time lately and had been coming to see Bepin Babu for a job.Bepin Babu knew that he could not help him in this regard which he had told him

Mr. Mukerji, after checking his diary, said that they had visited Ranchi in October’58. This added to Bepin Babu's worries as he could not figure out how he could possibly have forgotten about the trip.

Bepin Babu hesitated to visit Mr Dinesh Mukerji because he was afraid of the ruthless sarcasm he would have to face. He felt that if the whole story about Ranchi was false, then Mr Mukerji would think that he had gone insane. 

Being constantly troubled by the incident at the bookshop and having no other means for verifying the claims of Primal Ghose, Bepin Babu finally decided to ask Mr Mukerji. However, he decided to phone him because that way his embarrassment wouldn't be visible to the latter.

Bepin Babu lost consciousness at Hudroo Falls because that was the last place from where he could gather some evidendece of comiing to Ranchi. But it seems he failed to recollect any memory there. That may be reason behind his losing conciousness after he had a fall. He had broken his hip.

Chunilal did what he did because Bepin Babu did not help him at a time when he had no money and required a job. However, Bepin Babu did not do anything for him. So he wanted to punish him by rekindling haunting memory of his fall near Hudroo. Chunilal seems to be a good writer with very fertile imagination. That is what he believes would help him to tide over his bad phase.

No, Bepin Babu had not really lost his memory and forgotten all about a trip to Ranchi. It was a trick played by Chunilal .He did it as Bepin Babu didn't help him to get a job.

Dr Chanda was puzzled because he had never dealt with a case such as Bepin Babu’s. It was outside his field of experience.The unusual thing about Bepin Babu’s case was that he remembered everything in his past except for one particular incident. Dr Chanda said that Bepin Babu must have been to Ranchi. However, due to some unknown reason, the entire episode had slipped out of his mind.

Parimal Ghose knew following things about Bepin Babu: 

(i) That Bepin Babu slipped near Hudroo falls and hurt his leg. 

(ii) That Bepin Babu stayed in a Bungalow because he preferred food by bawarchi. 

(iii) That Bepin Babu’s wife died 10 years ago.

(i) Column B

(ii) Column A

(iii) Column B

(iv) Column B

(i) I have to cut my hair every month. 

(ii) We had to go for swimming lessons last year. 

(iii) She has to tell the principal the truth. 

(iv) They had to take the baby to the doctor. 

(v) We have to complain to the police about the noise. 

(vi) Romit had to finish his homework before he could come out to play. 

(vii) I had to repair my cycle yesterday.

After finding out that Chunilal had tricked him, Bepin Babu must have been filled with remorse for his 'unfeeling behaviour' towards an 'old friend down on his luck'. He would have realised that he had indeed been a victim of forgetfulness as he had forgotten the meaning of friendship in a time of 'affluence'.

He tried to decide whether his memory was right or Parimal Ghose by looking at his right knee where Parimal had claimed that there would be a cut. There was certainly a mark of an old cut. However, he could not decide if the cut was the result of his fall in Ranchi or due to some incident in his childhood. Then, he decided to ask Dinesh Mukherjee, who according to Parimal Ghose was with him in Ranchi. He felt that asking him would put an end to his confusion.

Bepin Babu continuously worried about what Parimal Ghose had said because he had shown that he knew many intimate facts about him. He knew about the bag of books, his wife's death and his brother's insanity. Considering that Parimal Ghose knew so much about him, Bepin Babu couldn't say with conviction that he was making a mistake about the Ranchi trip.

Bepin Babu changed his mind about; meeting Chunilal because he thought that it might be possible that the latter remembered something about the Ranchi trip. When! Chunilal confirmed that Bepin Babu had been to Ranchi, Bepin Babu decided to see a specialist doctor.

The correct answer is B) Weathering.

A. Karna had not given away somebody else’s things.

The beggar was in a hurry to leave, after getting the chappals because he knew s that the children have got them for him without seeking the permission of the elders. He feared they might be taken back from him, so he left in a hurry.

(i) Rukku Manni actually wanted to ask the children if they had seen the music master's slippers. 

(ii) She changed her question because children were curiously quiet and she suspected that children must have done something mischievous with chappals. 

(iii) When she saw the expression of absolute quietness ,she thought that the children must have given the music-master’s chappals to that old beggar .

(i) Mridu concludes that the beggar had no money to buy chappals because his feet were blistered as he moved on bare feet in the hot summer also. 

(ii) The kids felt that the beggar should have a pair of slippers.She suggests Mridu and Ravi about the pair of old slippers so that they could give it to the beggar.

No, the beggar had been coming to Rukku Manni’s house for the previous one week. The beggar himself confirmed this saying that he has survived for a week because of Rukku Manni’s kindness.

Gopu Mama was always in such a hurry to throw off his shoes and socks and get into his chappals as soon as he comes home. Rukku Manni began to laugh while thinking about the reaction of her husband after hearing this incident and when he came to know about that they had given his new chappals to the music teacher.

The V-shaped line suggests that Rukku Manni was very angry and was about to lose her temper on the children

(b) the velocity of all fluid particles crossing a given position is constant. 

1. Laminar Flow

• Layered flow with one layer of fluid sliding smoothly over the other. 
• Reynold’s No. < 1000 
• Observed usually in flow through porous materials. 

2. Turbulent 

• Haphazard flow with rapid and continuous mixing of fluid resulting in momentum transfer. 
• Reynold’s No. > 2000 
• Pipeline flow, river flow, etc.

Rukku Manni was fed up with the beggar coming to her place daily for over a -week now. She was tired giving him food and other items. She wanted him to find another house and stop coming to their place. So she asked Ravi to send him away.

C. He drank some milk from the tumbler.

Correct Option is (D) All of these

We know that , the viscous force 

\(F = \eta A \left(\frac{dv}{dx}\right)\)

where,

F = Viscous Force

\(\eta\) = Viscocity cofficient

A = Area

dv = velocity change with dx

then viscous force is directly proportional to

\(F \propto \eta\)

\(F \propto A \)

\(F \propto v\)

Then , all option is correct

(D) all of these.

C) Critical velocity

Explanations: 

The velocity of water below which the flow remains streamline flow is known as critical velocity

Ravi felt that Lalli will never learn to play the violin. The music teacher used to play the perfect notes, but she kept on going off the tracks. It was like her train getting derailed again and again while the teachers was running smoothly on the track.

A. never concentrated on it.

Q represents C₂ and P represents C₁

Reason: From the graph the slope q/v = Capacitance is greater for Q.

Also according to given conditions the capacitance \(\cfrac{\varepsilon A}d\) is larger for the C₂ because the area of its plates is large and d for the two capacitors is same. Hence, Q represents C₂.

We know that, V = \(\cfrac{1}{4\pi\varepsilon_0}\cfrac{Q}r\)

⇒ V \(\propto\cfrac1r\)

The potential due to a point charge decreases with increase of distance.

V_A – V_B > 0 ⇒ V_A > V_B

Hence, the charge Q is positive.

C = \(\cfrac{Q}{V}=\cfrac{1}{Slope\,of\,line}\)

As slope of A is smaller, capacitance of A is higher.

. Dielectric reduces the effective potential on plates and hence increases the capacitance.

The kinetic energy of a negative charge decreases while going from point B to point A, against the movement of force of repulsion.

(i) The dielectric having non-zero dipole moment is water or HCl.

(ii) The dipole having zero dipole moment is CH₄ or H₂.

The dielectric constant of a medium is defined as the ratio of capacitance of capacitor when filled with a medium to capacitance of same capacitor when medium is removed.

K = \(\cfrac{C_{medium}}{C_0}\) 

i.e.,

It has no unit.

Electric potential. It is a scalar quantity.

Correct answer is (a) Robot.

Rules for counting significant figures:

 Note: 1 Multiplying or dividing factors, which are neither rounded numbers nor numbers representing measured values, are exact and they have infinite numbers of significant figures as per the situation.

For example, circumference of circle S = 2πr, Here the factor 2 is exact number. It can be written as 2.0, 2.00 or 2.000 as required. 

Note: 2 The power of 10 is irrelevant to the determination of significant figures.

For example x = 5.70 m = 5.70 × 10² cm = 5.70 × 10³ mm = 5.70 × 10^-3 km.

In each case the number of significant figures is three.

Given: 

radius : 3.12 m (Three significant figures)

Area of the circle = πr² = 3.14 × (3.12 m)² = 30.566 

If the result is rounded off into three significant figure, area of the circle = 30.6 m²

Correct answer is (d) 6.3200 J

Graph d represent the variation in (i/i₀) against (T/T₀).