Explore topic-wise InterviewSolutions in Current Affairs.

Answer is (B) 1/t

The correct option is (C) Proteins.

Answer is (c) [(1,4),(2,5),(3,6)]

Correct Answer is: (A) Conductance 

Answer is (A) Conductance

Answer is (D) π/3

Answer is (b) one-one into

How many people  are there in your family.

You must read this book.

Answer is (b) many one into

Answer is (A) x(dy/dx) = y

Answer is (b) a²b² - vector(a.b)²

Answer is (c) 16

Answer is (b) f(2a - x) = - f(x) 

Actually the photographer's studio had poor lighting arrangement.Sunlight came through a steep of factory cotton which was fixed on pasted window. In the middle of the room there was a big camera. A black cloth was attached to the camera. The photographer arranged his studio in such a manner as stated above.

Letter-writing was done more carefully in the past because in those days people had more leisure time for such work and postage was much more expensive than it is today. Actually they were not in a hurry.

1. (A) Both statements are true and the 2nd statement is a correct explanation of the 1st statement. 

2. (A) Both statements are true and the 2nd statement is a correct explanation of the 1 st statement. 3. (D) Both statements are false. 

Correct statement:

1. Air is a mixture of gases. 

2. Air consists of Nitrogen Oxygen, CO,, other noble gases.

4. (A) Both statements are true and the 2nd statement is a correct explanation of the 1 st statement. 

5. (D) Both statements are false. 

Correct statement:

1. Mercury is liquid at room temperature. 

2. Mercury is a metal.

The forces F₁ and F₂ due to masses m₁ and m₂ respectively act on the stretched spring in opposite directions. Thus, the system as a whole is at

Thus F₁ + F₂ = 0

or, m₁a₁ + m₂a₂ = 0

Where a₁ and a₂ are accelerated of the masses m₁ and m₂ respectively in the opposite direction.

Now, m₁a₁ = -m₂a₂

or, a₁/a₂ = -m₂/m₁

which was to be established.

Correct Answer is: (B) Phenol 

The simple hydroxy derivation of benzene is phenol.

2-Ethybutanoic acid

(C) Ethanedioic acid

(I) Game breeds: Since ancient times, special breed of roosters have been used for the sport of cockfighting.

(II) Aseel: This breed is white or black in colour. The hens are not good egg layers but are good in incubation of eggs. It is found in all states of India. Aseel is noted for its pugnacity, high stamina, and majestic gait and dogged fighting qualities. Although poor in productivity, this breed is well-known for their meat qualities.

Sindhi, Gir, Jersy are Dairy/Milch breeds.

Given that, aRb if a ≥ b

Now,

We observe that, a ≥ a since every a ∈ R is greater than or equal to itself.

⇒ a ≥ a ⇒ (a,a) ∈ R ∀ a ∈ R

⇒ R is reflexive.

Let (a,b) ∈ R

⇒ a ≥ b

But b cannot be greater than a if a is greater than b.

⇒ (b,a) ∉ R

For e.g., we observe that (5,2) ∈ R i.e 5 ≥ 2 but 2 ≱ 5 ⇒ (2,5) ∉ R

⇒ R is not symmetric

Let (a,b) ∈ R and (b,c) ∈ R

⇒ a ≥ b and b ≥ c

⇒ a ≥ c

⇒ (a,c) ∈ R

For e.g., we observe that

(5,4) ∈ R ⇒ 5 ≥ 4 and (4,3) ∈ R ⇒ 4 ≥ 3

And we know that 5 ≥ 3 ∴ (5,3) ∈ R

⇒ R is transitive.

Thus, R is reflexive, transitive but not symmetric.

In most plants cross pollination is brought about with the help of insects like butterflies, moths and bees. Cross pollination has many advantages to plants also. Therefore it is considered that insects are friend of farmers.

B) mass number

Flower is the reproductive structure of a plant:

1. Generally the flower arises from the axil of a leaf, called bract. 

2. The flower is generally bone on a stalk called pedicel. 

3. Calyx is the outer most whorl composed of green colored units called sepals. 

4. Corolla is the second whorl from outside. It is composed of usually brightly colored units called petals. 

5. Androecium is the third whorl. It is composed of male reproductive structure called stamens. 

6. The inner most whorl is called gynoecium it is composed of female reproductive structure called carpels. 

7. A middle elongated style and terminal sensitive region called stigma.

8. Ovary encloses the ovules, In the ovule female gametes, ova are formed.

B) atomic mass number

Correct answer is (d) Whitish

Correct option is A) A – Z

Correct answer is (b) Ovule

Correct option is B) Z

1) C 

2) E 

3) D 

4) B 

5) A

1) C 

2) E 

3) D 

4) A 

5) B

(C) Jog falls

1) E 

2) D 

3) A 

4) C 

5) B

The Mount Vesuvius is in Italy

Equation of the line representing x-axis is y = 0

Number of days A required do a piece of work : 10 

Number of days B required do a piece of work : 12 

Number of days C required do a piece of work : 15

Work done by A in one day: \(\frac{1}{10}\)

Work done by C in one day: \(\frac{1}{12}\)

Work done by C in one day: \(\frac{1}{15}\)

Work done by A, B and C together in one day: \(\frac{1}{10}+\frac{1}{12}+\frac{1}{15}=\frac{15}{60}=\frac{1}{4}\)

∴ They can do the work together in 4 days .

Equation of the line representing y-axis is x = 0

Given,

 Anil can do a piece of work in 5 days

 Work done by him in 1 day \(=\frac{1}{5}\)

Ankur can do same work in 4 days

 Work done by Ankur in 1 day \(=\frac{1}{4}\)

∵ Work done by both in 1 day \(=\frac{1}{5}+\frac{1}{4}=\frac{9}{20}\)

∴ Total work done in \(=\frac{20}{9}={2}\frac{2}{9}\) days.

Given, 

Time taken by Rakesh to do a piece of work = 20 day

∵Work done by Rakesh in 1 day\(=\frac{1}{20}\)

∴ work done by him in 4 days \(\)\(={4}\times\frac{1}{20}=\frac{1}{5}\)th

Equation of a line parallel to x-axis passing through (a, b) is y = b 

Thus, 

Equation of a line passing through the point (0,4) and parallel to x-axis is y = 4

Given,

 Number of days taken by Rohan for painting \(\frac{1}{3}\) of painting = 6 days

∴Number of days taken by him to complete the painting \(=\frac{6}{\frac{1}{3}}\)= \({6}\times{3}=\)18 days

Equation of a line parallel to x-axis passing through (a, b) is y = b 

Thus, 

Equation of a line passing through the point (3, 5) and parallel tox-axis is y = 5

Equation of a line parallel to y-axis passing through (a, b) is x = a 

Thus, 

Equation of a line passing through the point (-3, -7) and parallel toy-axis is x = -3

Equation of a line parallel to Y-axis is x = k 

∴ The required equations are 

i) Through the point (- 4, 0) 

⇒ the equation is x = – 4 or x + 4 = 0 

ii) Through the point (2, 0) 

⇒ the equation is x = 2orx-2 = 0 

iii) Through the point (3, 5) 

⇒ the equation is x = 3 or x-3 = 0 

iv) Through the point (- 4,-3) 

⇒ the equation is x = – 4 or x + 4 = 0

(i) positive integer 

(ii) Negative integer 

(iii) 0 

(iv) 0 

(v) zero

(iv) Large number 3 or – 7 is 3 

(ii) Smallest positive number is 1