Explore topic-wise InterviewSolutions in Current Affairs.

(i) Electron, proton, neutron are the types of subatomic particles in an atom.

(ii) An electron carries a negative charge.

(iii) The electron shell K is nearest to the nucleus

(iv) The electronic configuration of magnesium is 2, 8, 2. From this it is understood that the valence shell of Magnesium is M.

(v) The valency of hydrogen is ‘one’ as per the molecular formula H₂ O. Therefore valency of ‘Fe’ turns out to be 3 as per the formula Fe₂ O₃.

One of the function of the neutrons in the nucleus is to keep the protons and neutrons together by nuclear force.

We have, f : X→ R,f(x) = x³ + 1.

Where X = {-1, 0, 3, 9, 7}

Now f (-l) = (-l)³ +1 =-l + 1 =0

f(0) = (0)³ +l=0+l = l

f(3) = (3)³ + 1 = 27 + 1 = 28

f(9) = (9)³ + 1 = 729 + 1 = 730

f(7) = (7)³ + 1 = 343 + 1 = 344

f= {(-1, 0), (0, 1), (3, 28), (9, 730), (7, 344)}

Range of f= {0, 1, 28, 730, 344}

∠AOE = ∠BOF = 5y (Vertically opposite angles) 

Also, 

∠COE + ∠AOE + ∠AOD = 180° 

So, 2y + 5y + 2y = 180° 

or, 9y = 180°, which gives y = 20°.

PQ straight line, intersects AB||CD]|EF at points R, S, T. 

If y : z = 3 : 7, then value of ‘x’ = ? 

PQ straight line intersects CD||EF at S and T. 

∴ ∠CSR = ∠DST = y (∵ vertically opposite angle) 

But, ∠DST + ∠STF = 180° 

(∵ Sum of interior angles in the same side) 

∴ y + z = 180° 

But, y : z = 3 : 7. 

Sum of ratio 3 + 7 = 10 

If ratio 10 means 180 

If ratio 9 means ?

\(\frac{180\times3}{10}\) = 54°

∴ y = 54° y + z = 180 

54 + z = 180 

∴ z = 180 – 54 

∴ z = 126° 

But, x + y = 180 

(∵ Sum of interior angles on one side) 

x + 54 = 180 

∵ x = 180 – 54 

∵ x = 126°.

Correct option is  D) 120°

Answer is (A) 2i + 2j

Correct option is (C) AB ≅ CD, ∠XYZ ≇ ∠DEF

\(\because\) \(\overline{AB}=\overline{CD}\)

\(\therefore\) \(AB\cong CD\)

\(\because\) \(\angle XYZ\neq\angle DEF\)

\(\therefore\) \(\angle XYZ\ncong \angle DEF\)

C) AB ≅ CD. ∠XYZ ≇ ∠DEF

Correct option is : (D) 14π/13

Correct answer is (B) 264°

Correct option is : (B) (13π/15)^e

Step-by-step explanation:

156 degree = 156°

As we know that 180°  = π  Radians

1° would be equal  to π/180

156° would be equal to = 156 * π/180

= 78 π/90

= 39 π/45

= 13π/15

156° = 13π/15  Radians

So, Correct Option (B) 13π/15  Radians

Correct answer is (B) \(\left(\frac{13\pi}{15}\right)^c\)

Step-by-step explanation:

 156 degree = 156°

 As we know that 180°  = π  Radians

 1° would be equal  to π/180 

156° would be equal to 

= 156 * π/180

 = 78 π/90

 = 39 π/45 

= 13π/15 

156° = 13π/15  Radians 

So, Correct Option (B) 13π/15  Radians

(b) A ⟂ B

(d) when either |A | or |B| or is zero.

(a) Magnitude of particle velocity (speed) remains constant.

(b) Particle velocity remains directed perpendicular to radius vector.

(c) Direction of acceleration keeps changing as particle moves.

B) Absorption spectrum

Given,

f = {(1, 2), (3, 5), (4, 1)} and g = {(2, 3), (5, 1), (1, 3)}

Now,

fog (2) = f(g(2)) = f(3) = 5

fog (5) = f(g(5)) = f(1) = 2

fog (1) = f(g(1)) = f(3) = 5

Thus,

fog = {(2, 5), (5, 2), (1, 5)}

Answer is True

Answer is False

f(x) = g(x)

=> 3x² - 1=3+x 

=> 3x² -x-4 = 0 

=> (3x – 4)(x+ 1) – 0

x= -1,4/3

Answer is Yes, 

values should be α = 2 , β = −1

Explanation: Given that, g = {(1,1),(2,3),(3,5),(4,7)}
Here,each element of domain has unique image. So,g is a function .
Now given that, g(x) = αx+β
g(1) = 1 
⇒ α+β = 1
g(2) = 3
⇒ 2α+β = 3
Solving (i) and (ii), we get   
α = 2, β = -1
∴ g(x) = 2x - 1
above function satisfies (3,5) and (4,7)

According to the question,

g = {(1, 1), (2, 3), (3, 5), (4, 7)}, and is described by relation g (x) = αx + β

Now, given the relation,

g = {(1, 1), (2, 3), (3, 5), (4, 7)}

g (x) = αx + β

For ordered pair (1,1), g (x) = αx + β, becomes

g (1) = α(1) + β = 1

⇒ α + β = 1

⇒ α = 1 – β …(i)

Considering ordered pair (2, 3), g (x) = αx + β, becomes

g (2) = α(2) + β = 3

⇒ 2α + β = 3

Substituting value of α from equation (i), we get

⇒ 2(2) + β = 3

⇒ β = 3 – 4 = – 1

Substituting value of β in equation (i), we get

α = 1–β = 1–(–1) = 2

Now, the given equation becomes,

i.e., g (x) = 2x–1

Yes, we can change the background of a slide at any point of time.

It is a grouping of individuals into specific groups, like small rural communities or a neighborhood subdivision, if you will. A social networking service is an online service, platform or site that focuses on facilitating the building of social networks or social relations among people. e.g. people who share interests, activities, backgrounds or real-life connections. When it comes to online social networking, Websites are commonly used. 

These Websites are known as Social Sites. The most popular social sites are currently on Facebook, MySpace, Orkut etc. These Websites provide users with the simple tool to create a custom profile with text and pictures. A typical profile includes basic information about a user, at least one photo and possibly a blog or other comments published by the user. It may include videos, photos albums, online applications as in Facebook or custom layout (in MySpace). After creating a profile, the user can send a message to other users and leave comments directly on friends’ profiles.

Yes, we can insert pictures, graphs, charts, SmartArt etc., into a slide.

Benefits of ICT 

ICT has become an integral part of our daily life. And, it has benefited the common man in various ways in every field of life. Some of them are as follows: 

In Education

The main purpose of the strategy for ICT implementation in education is to provide the prospects and trends of integrating ICT into the general educational activities. 

Some benefits of ICT in education are as follows: 

1. There is no time foundation on an individual for getting educated by a teacher. A person can attend a class anytime and anywhere. 

2. Teachers can create interactive classes and make the lessons more interesting. 

3. Generally, students find images and graphical representation of concepts, more interesting as compared, to the theoretical knowledge. And, using ICT, teachers can explain even the most complex concept in a very simplified manner using graphics, videos, and animations. 

4. An individual can learn at the pace he/she is comfortable. 

5. Learning resources can be accessed remotely. 

In Healthcare 

Some benefits of ICT in healthcare are as follows: 

1. Automated hospital information systems can help to improve quality of care. 

2. Decreased costs of treatment. 

3. ICT has significantly enhanced the services being provided and brought behavioral changes. 

4. This technology helps doctors, hospitals, the general public, and all other medical care providers. 

5. The pharmaceutical industry is the industry that enjoys the biggest benefits of ICT. 

6. ICT has made E-Health possible.

Kalpana Chawla’s first mission was in the space shuttle Columbia. It was a 15 days, 16 hours and 34 minutes. During this time, she went around the earth 252 times traveling 1.45 million km. The crew performed experiments such as pollinating plants to observe food growth in space. It also made test for making stronger metals and faster computer chips. It was all done for a price tag of 56 million dollars.

1.16^th January, 2003; Kennedy Space Center, Florida

2.7 (Seven)

3.16 Days

4.80 experiments

5.Saturday, 1st February, 2003

6.200,000 feet

Kalpana Chawla was born in Karnal, a district of state Haryana. Though she was born and brought up in India. After she went to US she became its naturalised citizen.This is the reason why She was called an Indian-American

She went to US for a master's degree after completing her Bachelor of Science degree in aeronautical engineering.There she married flight instructor Jean-Pierre Harrison.

1.Unidentified

2.Uncontrolled

3.Unattended

4.Unsuccessful

5.Unimportant

6.Uneducated

7.Uninteresting

8.Unqualified

9.Untrained

10.Unanswerable

After qualifying as a pilot, Chawla applied to NASA space shuttle program. She was first hired as a research Scientist at NASA. In 1994 she was selected at NASA for training as an astronaut. It was her success as a pilot which gave her the idea that she could become an astronaut.

Kalpana Chawla said, "The path from dreams to success does exist.May you have the vision to find it, and the courage to get onto it....". 

Yes, success is possible.If a person has the strong will power, determination, guts to face the challenges that come while chasing ones dream, then everything is possible.

Many species of Zooplankton under unfavourable conditions enters diapause which delay overall development.

A. According to the principle of independent assortment the two factors of each character assort or separate out independently of the factors of other characters ,at the time of gamete formation and get randomly rearranged in the offsprings producing both parental and new combinations of characters.

B. 

a. Crossing over: Crossing over influences linked genes as a result of which 50% recombination is obtained in the test cross progeny. 

b. Linkage: It influences recombination which is less than 50%.

i. When the genes of different traits are located on the same chromosome, and must be distantly located to enhance the recombination frequency they are so far apart that there is 100% chance of crossing over between them. 

ii. When the genes of different traits may be located on different chromosomes.

It is given that

Diameter of the sphere = 15.6 cm

Radius of the sphere = 15.6/2 = 7.8 cm

Height of the cone = 31.2 cm

We know that

4/3 πR³ = 1/3 πr²h

So we get

4/3 × (22/7) × 7.8³ = 1/3 × (22/7) × r² × 31.2

On further calculation

r² = (4/3 × (22/7) × 7.8³)/ (1/3 × (22/7) × 31.2)

So we get

r² = (4 × 474.552)/ 31.2 = 60.84

By taking square root on the RHS

r = 7.8cm

Diameter = 2 (7.8) = 15.6cm

Therefore, the diameter of the base of the cone is 15.6cm.

It is given that

Diameter of the sphere = 18cm

Radius of the sphere = 18/2 = 9cm

Length of the wire = 108m = 10800 cm

We know that

πr²h = 4/3 πr³

By substituting the values

(22/7) × r² × 10800 = 4/3 × (22/7) × 9³

On further calculation

r² = (4/3 × (22/7) × 729)/ ((22/7) × 10800)

So we get

r² = (4 × 243)/ 10800 = 9/100

By taking square root on the RHS

r = 3/10 = 0.3 cm

Diameter = 2 (0.3) = 0.6 cm

Therefore, the diameter of the wire is 0.6cm.

• Communication or exchange of information is an important process in today’s era. Communication is basic infrastructure. 
• Man-made satellites are an important and effective means of communication.
• The exchange of messages through mobiles, watching progammes on television, getting updates of climatic condition etc. is possible simultaneously through man-made satellites. 
• Satellite images obtained by remote sensing facilitate study of resources on earth’s surface and helps in regional planning. 
• Many apps which can be used on mobile phones have been developed for the same. 
• For e.g. BHIM app, SBI anywhere, etc. By using these communicational facilities, we can pay various bills, sell and buy goods and services and carry other such transactions. 
• Nowadays, communication is not just limited to talking on telephone or sending messages but also video calling is available now.

Correct option is (c) Video-calling

Types of Anthrax of Anthrax (Biowar disease) 

• Anthrax infection can occur in three different forms: cutaneous (skin), gastrointestinal (by ingestion) and pulmonary (by inhalation). 

(i) Cutaneous anthrax occurs when bacteria enter through skin cuts and wounds. A skin lesion begins as a papule and soon becomes a vesicle and breaks, discharging bloody serum. This vesicle, in about 36 hours, becomes a bluish-black necrotic mass (dead tissue). It consists of minute particles rich in spores. 

(ii) Gastrointestinal anthrax is caused by taking under- cooked meat of infected animals. Patient experiences chill, high fever, body aches, nausea, vomiting, bloody diarrhoea, loss of appetite, and frequent haemorrhages from the mucous membranes and in the skin. 

(iii) Pulmonary anthrax is acquired by inhaling dust containing B. anthracis. Pulmonary anthrax is often called wool-sorter’s disease.

• Lock jaw disease is caused by the spores of Clostridium tetani that enter through wounds. 

Mode of transmission 

• Incubation period is of 3-25 days during which the bacterium secretes a powerful exotoxin tetanospasmin into the tissue, and blood carries it to the central nervous system and brings about tetanus of muscles. 

• Its infection is acquired by contamination of wounds with tetanus spores as these infected spores are abundant in the soil manured with animal dung. 

• Spores may survive for 60 or more years in contaminated soil. 

Symptoms of Tetanus (Lock jaw) 

• Symptoms include painful muscular spasms especially of neck and jaw. 

• Lock jaw condition occurs when the patient cannot open the mouth. Convulsions and paralysis of muscles, difficulty in chewing and swallowing, fever and headache are the other symptoms. 

Prevention and treatment 

• All wounds should be treated carefully and cleaned with iodine solution. 

• Immunisation of infants by DPT should be done. 

• ATS {antitetanus serum) injection within 24 hours of injury provides passive immunity while TT (tetanus toxoid) gives active immunity.

(d) Cash equivalents

रज़ा के पसंदीदा फ्रेंच कलाकारों में सेज़ों वॉन गॉज गोगा, पिकासो, मातीस, शागाल और ब्रॉक थे। इनमें वे पिकासो से सर्वाधिक प्रभावित थे।

यह पाठ रज़ा की आत्मकथात्मक पुस्तक ‘आत्मा का ताप’ का एक अध्याय है। इसका अंग्रेजी से हिंदी अनुवाद मधु बी, जोशी ने किया है। इसमें रजा ने चित्रकला के क्षेत्र में अपने आरंभिक संघर्षों और सफलताओं के बारे में बताया है। एक कलाकार का जीवन-संघर्ष और कला-संघर्ष उसकी सर्जनात्मक बेचैनी अपनी रचना में सर्वस्व झोंक देने का उसका जुनून ये सारी चीजें रोचक शैली में बताई गई है।