Explore topic-wise InterviewSolutions in Current Affairs.

Correct answer is (d) met

(a) need 

(b) dare 

(c) should 

(d) shall 

(e) will

(a) must 

(b) Can 

(c) can 

(d) used to 

(e) need not

We should follow the traffic rules.

1. (c) emotional

2. (c) certain

3. (a) work seriously

4. (b) suitable

5. (b) young and inexperienced

Correct option is 

1 (c) Social progress

2 (a) its rigidity and because it ignores certain essential needs of human nature.

3 (b) The suppression of individual freedom

Correct option is 

1 (b) after a revolution

2 (b) the government of India

Correct option is A) lengthen

Correct option is D) sensible

Correct option is A) strong

Correct option is 

1 (b) prior to the Vedas

2 (a) Original compositions

3 (d) Yajur Veda

Correct option is 

1 (c) Truth

2 (d) in Kurukshetra

3 (a) Prakriti

The correct answer is Nanoparticle.

• A particle having at least one dimension less than 10^-7  metre, is known as Nanoparticle (10^-9).
• At least one means 10^-8,10^-9,10^-10,10^-11, etc.
• Hence as per given options, 10^-9 is Nanoparticle.

• Milli particle-10^-3
  • ^​The millimetre or millimetre is a unit of length in the metric system, equal to one-thousandth of a metre, which is the SI base unit of length. Therefore, there are one thousand millimetres in a metre. There are ten millimetres in a centimetre. One millimetre is equal to 1000 micrometres or 1000000 nanometres​.
• Micro particle-10^-6
  • ^​The micrometre or micrometre, also commonly known as a micron, is an SI derived unit of length equalling 1×10⁻⁶ metre; that is, one-millionth of a metre. The next smallest common SI unit is the nanometre, equivalent to one one-thousandth of a micrometre, or one billionth of a metre.
• Nano particle-10^-9
  • ^​A nanoparticle or ultrafine particle is usually defined as a particle of matter that is between 1 and 100 nanometres in diameter. The term is sometimes used for larger particles, up to 500 nm, or fibres and tubes that are less than 100 nm in only two directions
• Pico particle-10^-12​
  • The picometre or picometer is a unit of length in the metric system, equal to 1×10⁻¹² m, or one trillionth of a metre, which is the SI base unit of length.
  • The picometre is one-thousandth of a nanometre, one-millionth of a micrometre, and one trillionth of a meter.
  • The symbol μμ was once used for it. 

The correct answer is A - (iv), B - (i), C - (v), D - (ii), E - (iii).

The table below is correctly matched:

• Sugar is the generic name for sweet-tasting, soluble carbohydrates, many of which are used in food.
• Table sugar, granulated sugar, or regular sugar, refers to sucrose, a disaccharide composed of glucose and fructose.
• Simple sugars, also called monosaccharides, including glucose, fructose, and galactose. Compound sugars, also called disaccharides or double sugars, are molecules composed of two monosaccharides joined by a glycosidic bond.
• Common examples are sucrose (table sugar) (Sucrose=glucose + fructose), lactose (glucose + galactose), and maltose (two molecules of glucose).
• In the body, compound sugars are hydrolysed into simple sugars. 

1. According to author, in spite of its apparent success communism fails because of its rigidity and because it ignores certain essential needs of human nature.

2. Communism has succeeded in some measure by giving content to man’s life.

3. No, there is no suppression of individual freedom in democracy.

4. Nehru thinks that having no approach to tolerance to the point of view of others is all unscientific and unreasonable.

5. According to the author it is very difficult to define socialism in exact terms but it lessens economic inequalities and adds to productive forces.

1. In 1857 different sections of Indian society rose to challenge the British authority.

2. The British said that their primary objective in India was about the welfare of the Indian people.

3. In 1885, the dream of having a national organization was finally fulfilled by the establishment of All India National Congress.

4. The two basic issues on which the congress petitioned to the British were representation in government and Indianization of the administration.

5. The slogan which Tilak gave to the Indian masses was, “Swaraj is my birthright and I shall have it.”

6. The Indians agreed to help the British during the First World War because they thought that India would be rewarded in the form of self government.

7. Rowlatt Acts were known as ‘Black Acts’ because they curtailed Indian freedom

Harappa Indus Valley sites is presently in Pakistan.

(b) Shipbuilding

1. Gandhiji left for Dandi on Mrch 12, 1930.

2. The identities of the members joining the march to Dandi were published for the information of the police so as to make their arrest easier.

3. Mahatma Gandhi exhorted the people to wear Khadi, abjure alcohol and drugs, abandon child marriage, keep clean and lead a pure life on the way to Dandi.

4. Thousands of people reached Dandi when Ganhiji finally reached there.

5. Mrs. Sarojini Naidu cried, “Hail, Deliverer” when Gandhiji broke the salt law.

6. Subhash compared this march with that of Napolean’s march to Parish from Elba.

7. Gandhiji had communicated the idea of breaking laws of the British administration to the people of this country and as a symbol they were asked to break salt law.

(a) Lomov is a neighbour of Choobookov.

(b) The condition of the Negroes was appalling.

(d) Rakhal Das Banerji

English is not our native language. English is used as the second language in India. It is the language of science and commerce. English is the language which bound us together during the freedom struggle. English has become a passport to jobs in India and abroad. It is a language in which Indians trying to make themselves proficient. As a link language, English has been bringing unity among the people of India, speaking different regional languages.

English played a very important role in the past as it helped Indian writers to acquire the latest knowledge from the western countries. It worked in linking different parts of our country and helped to bring people of different regions together.

It was English gave the dimensions of a National Movement to our freedom struggle.Today science bring the world closer. Thus it is important for Indians to learn English in this age of globalisation. So, we can say that English is the second language of India.

The most widely used language in the world today is English. There is hardly any country where English is not being taught. It is the language of science and commerce. In this globalised world, no country can progress without the knowledge of English. The United States has English as its main language. In the European countries like Russia, France and Germany etc. the language is spoken by a large number of people. It is the main language of the United Nations. It is used as the medium of instructions in schools and colleges almost in every countries. Really English is expanding by leaps and bonds as a world language.

English is said to be an International language as no other language is read and spoken in so many countries as it is. Naturally, it has became the language of international trade and commerce. All the earlier colonies of the British Empire including India had the presence of this language. The united states has English as its main language. In the European countries like France, Russia, Germany etc. the language is spoken by a large number of people. It is the main language of the United Nations. Even the Chinese are learning English in order to compete with the world in the age of global market economy.

Total no of possible outcomes = 6 

There are 3 Prime numbers, 2,3,5. 

So, Probability of getting a prime number is \(\frac{3}{6}\) = \(\frac{1}{2}\)

1. The staff that Gandhiji carried with him was only 54 inches long and one inch thick.

2. On April 5, 1930 Gandhiji and his followers reached Dandi.

3. Mrs Sarojini Naidu’s words ‘Hail Deliverer’ refer to Gandhiji.

4.(i) False;(ii)True.

5. (i) (d) less of an impact. 

(ii) (c) Gandhi himself

No. of red balls = 3, 

No. of black balls = 5 

Total number of balls = 5 + 3 = 8 

Probability of red balls = \(\frac{3}{8}\)

Perimeter = Area 

2πr = πr² 

r = 2 units

1. The foundation of our constitution is based on all good things of the past.

2. In the United States the executive is divorced from the legislature.

3. A democrat is always conscious of human fallibility. He must always understand and appreciate the other man’s point of view or even opponents.

4. (i) True; (ii) True; (iii) False.

5. (i) a, (ii) c.

1. By the article 52-A, the lacuna regarding Fundamental Duties was removed from the Indian constitution. 

2. The first article of the list of Fundamental Duties directs us to abide by the Constitution and respect its ideals and institutions, the National flag and the National Anthem. 

3. The fifth article of the Fundamental Duties directs us to promote harmony and the spirit of common brotherhood amongst all the people of India transcending religions, linguistic and regional or sectional diversities.

4. ( i) a; (ii) c. 

5. (i) True; (ii) False.

1. True 

2. False 

3. True

1. Communism succeeds only through violence, which is not a right means for a good end.

2. Welfare state, democracy and socialism hardly convey a clear and unambiguous meaning.

3. To Nehru, socialism can wipe out the wide gap between capitalism and common man in society.

4. (i) False; (ii) True; (iii) False.

5. (i) b; (ii) b

\(\frac{a1}{a2}\) ≠ \(\frac{b1}{b2}\) is the condition for the given pair of equations to have unique solution.

\(\frac{4}{2}\) ≠ \(\frac{p}{2}\)

p ≠ 4

Therefore, for all real values of p except 4, the given pair of equations will have a unique solution.

3 median = mode + 2 mean

The minimum number of points to be located at equal distances, on ray BX is 8

Correct option is A) log

Correct option is D) sofa

sofa because here everything is related to bed except sofa So D sofa is correct

he equation x² – 9x + 20 = 0 has real and unequal roots.

There are two cases, (i) First digit is greater than 2 (ii First digit is 2

Case : (i) First digit can be chosen from 3,4,5,6 so 4 possibilities, then next 3 digits can be selected from any 6 digits.

= 4 × 6 × 5 × 4 = 480

Case : (ii) First digit is 2, second digit starts from 3, so it can be 3,4,5,6 so 4 possibilities.

Now if any one digit of third and fourth digit can be 0 as no digit is repeated so it will be surely greater than 2300. So last two digits can be selected from any 5 digits.

= 1 × 4 × 5 × 4 = 80

∴ Total = 480 + 80 = 560.

now for this first we will begin with finding the area of rectangle or the total area= 60×30 cm_^{^2} =1800 cm_^{^2}

now second step we will find that area of small quadrant i.e. 3.14 ×12² / 4 cm_^{^2} = 3.14× 36 cm_^{^2} =113.04 cm_^{^2}

Now area of unshaded portion is total - area of quadrant = (1800 - 113.04 )cm_^{^2}  = 1686.96 cm_^{^2}  = 1687 cm_^{^2}(approx )

L.H.S = \(\frac{1}{cosec θ+ cot θ}\) = \(\frac{cosec\theta+cot\theta}{(cosecθ − cotθ)(cosecθ + cotθ)}\) 

(By multiplying numerator and denominator by cosecθ + cotθ) 

= \(\frac{cosecθ + cotθ}{cosec^2θ − cot^2θ}\) (∵ (a+b)(a–b) = a² − b² ) 

= \(\frac{cosecθ + cotθ }{1}\) = cosecθ + cotθ = R.H.S. 

(∵ cosec²θ = 1 + cot²θ ⇒ cosec²θ − cot²θ = 1) 

Hence proved

y^2-x = x³ at (1, 1)

(2 - x) log y = 3 log x-----(i) (by taking log both sides)

(2-x)1/y (dy/dx) - log y  = 3/x-----(ii) (by differentiating (i) w.r.t x)

(2 - x)1/y(dy/dx) = 3/x + (3logx)/(2 - x)

\(\frac{dy}{dx}=y\left(\frac{3}{x(2-x)}+\frac{3logx}{(2-x)^2}\right)\)

\(\frac{dy}{dx}\) at (1, 1) = 1\((\frac{3}{1\times1}+\frac{3log 1}{1^2})\) = 3

\(\frac{(2-x)}y\frac{d^2y}{dx^2}-\frac{(2-x)}{y^2}(\frac{dy}{dx})^2\) - \(\frac1y\frac{dy}{dx}-\frac1y\frac{dy}{dx}=\frac{-3}{x^2}\)......(iii)

(By differentiating equation (ii) w.r.t. x)

Put x = 1, y = 1, \(\frac{dy}{dx}=3\) in equation (iii), we get

⇒ \(\frac{2-1}1\frac{d^2y}{dx^2}-\frac{(2-1)}1\times9-3-3=-3\) 

⇒ \(\frac{d^2y}{dx^2}=12\) 

radius of curvature at (1, 1) to given curve is

p = \(\cfrac{(1+(\frac{d^2y}{dx^2})^2)^{3/2}}{\frac{d^2y}{dx^2}}\) 

= \(\frac{(1+3^2)^{3/2}}{12}=\frac{(10)^{3/2}}{12}\)

Given:

Initial ratio of students in the hostel = 2 : 3 : 5

New ratio of students in the hostel = 5 : 7 : 11

Concept used:

Initial value + Increment = Final value

Calculation:

Let the number of students in the first hostel be 2x

Let the number of students in the second hostel be 3x

Let the number of students in the third hostel be 5x

(2x + 5)/(3x + 5) = 5/7

⇒ 14x + 35 = 15x + 25

⇒ 15x – 14x = 35 – 25

⇒ x = 10

Number of students initially = 20, 30 and 50

Increased number of students = 25, 35, 55

Total number of increased students = 25 + 35 + 55 = 115

∴ The new total number of students in three hostels is 115.

Given:

Weight of diamond = 150 grams

The ratio of the weight of two pieces = 8 : 5

Weight of the third piece = 20 grams

Concept used:

Total weight = Weight of first piece + Weight of second piece + Weight of third piece

Calculation:

Let the weight of the first piece be 8x

Let the weight of the second piece be 5x

150 = 8x + 5x + 20

⇒ 13x = 130

⇒ x = 10

Weight of the first piece = 8 × 10 = 80

∴ The weight of the first piece is 80 grams.