Explore topic-wise InterviewSolutions in Current Affairs.

(c) Gopal Hari Deshmukh

The correct answer is Tim Berner-Lee.

• Tim Berner-Lee:
  • He invented the World Wide Web in 1989. Hence, Option 4 is correct.
  • The full form of WWW is the World Wide Web.
  • The World Wide Web connected the world in a way that was not possible before and made it much easier for people to get information, share, and communicate.
  • It allowed people to share their work and thoughts through social networking sites, blogs, and video sharing.
  • Tim Berner-Lee was knighted by Queen Elizabeth II in the year 2004.
  • Internet Protocol was introduced by Robert E. Kahn and Vint Cerf in 1974.

• World-Wide-Web:
  • It uses hypertext over the internet and the linked documents may be located at different internet sites.
  • It also consists of different text formats and different methods of organizing information.
  • It is the main method to access Internet resources. Special index documents have been created in the World Wide Web information space and these can be searched for given keywords.  And the result will be a new document that contains links to documents selected from the index.

• Vint Cerf:
  • Widely known as the Father of the Internet, Cerf is the co-designer of the TCP/IP protocols and the architecture of the Internet.
• Robert Kahn:
  • He is the co-inventor of the TCP/IP protocols and was responsible for originating DARPA’s Internet program.
  • Known as one of the Fathers of the Internet, Kahn demonstrated the ARPNET by connecting 20 different computers at the International Computer Communication Conference.
  • It was then that people realized the importance of packet switching technology.  
• Charles Babbage:
  • He was born on Dec. 26, 1791, in England.
  • He was a polymath and became a mathematician, mechanical engineer, inventor, and philosopher.
  • He contributed to many different scientific fields but his most famous work is designing a programmable computing device.
  • He is considered the father of the computer and is given credit for devising the first-ever mechanical computer. His design served as the blueprint for other, more complex machines.

The correct answer is Guru Jambheshwar

• Guru Jambheshwar was born in 1451 in Pipasar village of Nagaur district of Rajasthan.
• He founded the "Vishnoi society" at the age of 34 years.
• He gave 29 rules related to the livelihood of his community, hence it is called Vishnoi society.
• Of their total 29 rules, 8 are related to biodiversity, 7 to social behavior, 10 to health, and 4 to the worship of God.
• Guru Jambheshwar did invaluable service to humanity by donating food to the poor and in the famine.
• Swami Keshwanand was a freedom fighter and social reformer.
• He related to the jat family and born in the Sikar district in Rajasthan.
• Jamnalal Bajaj was an industrialist and freedom fighter of India.
• He was a follower of Mahatma Gandhi and Gandhiji considered him his adopted son.
• Raja Ram Mohan Roy is considered the "architect of the Indian Renaissance" and the "father of modern India".

The correct answer is Brahmi.

• The Edicts of Ashoka are a collection of more than thirty inscriptions on the pillars, as well as boulders and cave walls.
• The edicts describe in detail Ashoka's view about dhamma, an earnest attempt to solve some of the problems that a complex society faced.
• These edicts were deciphered by British archaeologist and historian James Prinsep.
• These inscriptions proclaim Ashoka's adherence to the Buddhist philosophy which, as in Hinduism, is called dharma, "Law".

• The inscriptions of Ashoka are found with the following scripts:
  • Magadhi Prakrit using Brahmi Script - in the central and eastern part of India
  • Prakrit using Kharoshti script - in north and northwest
  • Greek and Aramaic - in northwest India

Ashokan inscriptions are classified as below:

• Major Rock Edicts: 14 Edicts and 2 separate ones found in Odisha; in Prakrit and Greek. 
• Major Pillar Edicts: 7 Edicts, inscribed at the end of Ashoka's reign; in Prakrit.
• Minor Rock Edicts: Edicts inscribed at the beginning of Ashoka's reign; in Prakrit, Greek and Aramaic.
• Minor Pillar Edicts: Schism Edict, Queen's Edict, Rummindei Edict, Nigali Sagar Edict; in Prakrit.

The correct answer is Child marriage

• Harvilas Sharda was one of the leading social reformers of India.
• Harvilas Sharda was born on 3 June 1867 in Ajmer city of Rajasthan.
• The Sharda Act was enacted in 1928 to prevent child marriages.
• In the Sharda Act, the minimum marriage age of the girl was fixed at 14 years and that of the boy at 18 years.
• Harvilas Sharda was a famous educationist, politician, social reformer, and writer of India.
• The abolition of slavery was carried out by Governor-General Lord Ellenborough.
• The practice of Sati was banned throughout British India on 4 December 1829 by Lord William Bentick.
• The ban on cheating was imposed in 1830.

The correct answer is Swayam Shikshan Prayog.

• Swayam Shikshan Prayog (SSP) is a Pune based non-governmental organization which was co-founded by Prema Gopalan and Sheela Patel in 1998.
• It aims to prop up female entrepreneurs in various areas such as agriculture, health and sanitation.
• Swayam Shikshan Prayog is an Indian NGO which promotes inclusive, sustainable community development by empowering women in low-income areas and threatened communities.
• Swayam Shikshan Prayog promotes women’s collectives by training them as farmers and entrepreneurs and thereby increasing their economic and social resilience.
• The United Nations Framework Convention on Climate Change (UNFCCC) outlined in 2019 that Swayam Shikshan Prayog (SSP) had outstretched to over 4 million people in India, predominantly in Maharashtra, Bihar, Gujarat and Tamil Nadu.
• Through Swayam Shikshan Prayog 1,100 female entrepreneurs working on clean energy systems in eight different districts.

The correct answer is Charles Babbage.

• Charles Babbage invented the 'Computer'.

• Blaise Pascal had developed the first mechanical calculator in 1642 AD, which is called ‘Pascalene’.
• British scientist Charles Babbage was the first person to conceive an automatic calculator or a computer in 1833.
  • He is called the ‘Father of modern computer’.
• The credit for developing the first computer programme goes to Ada Lovelace, a student of Babbage.
• Howard Aiken developed the first Mechanical Computer ‘Mark-I’ in ‘ENIAC‑I’ in 1946.

• Albert Einstein established a relation between mass and energy on the basis of the special theory of relativity in 1905.
  • According to this mass can be converted into energy and vice-versa. i.e., E = mc².
• Fahrenheit Scale was invented by Fahrenheit.

The correct answer is Mac Milan.

• Kirkpatrick Macmillan (2 September 1812 in Keir, Dumfries and Galloway – 26 January 1878 in Keir) was a Scottish blacksmith.
• He is generally credited with inventing the pedal-driven bicycle.
• According to the research of his relative James Johnston in the 1890s, Macmillan was the first to invent the pedal-driven bicycle.
• Macmillan allegedly completed construction of a pedal-driven bicycle of wood in 1839 that included iron-rimmed wooden wheels, a steerable wheel in the front and a larger wheel in the rear which was connected to pedals via connecting rods.

The correct answer is Dynamite.

• Alfred Nobel born in Stockholm invented Dynamite in 1866.
• Nobel Prize was also stared on his name  from 1901 in the following fields :
  • Physics
  • Chemistry
  • Physiology or Medicine
  • Literature 
  • Peace Prize 
  • Economics (From 1968)

• Physics, Chemistry, Physiology or Medicine and Literature are awarded in Stockholm, Sweden.
• Nobel Peace Prize is awarded in Oslo, Norway.

• Radium was discovered by Marie Curie and Pierre Curie in 1898.
• Marie Curie was awarded the Nobel peace prize in 1903.
• Wilhelm Roentgen, Professor of Physics discovered X-rays in 1895.
• Galileo Galilei was the discoverer of the Solar system.

CONCEPT:

• Television sometimes shortened to tele or telly, is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in color, and in two or three dimensions and sound.
• Television is a mass medium for advertising, entertainment, news, and sports.

EXPLANATIONS:

• Television was invented by John Logie Baird (14 August 1888 - 14 June 1946), in Helensburgh on the west coast of Scotland, the son of a clergyman.
• Dogged by ill health for most of his life, he nonetheless showed early signs of ingenuity, rigging up a telephone exchange to connect his bedroom to those of his friends across the street.
• Newton: Issac Newton was an English physicist and mathematician famous for his laws of physics.  He discovered the Gravitational force and introduce the concept of calculus to the world.
• Graham Bell: Alexander Graham Bell was known for inventing the first working telephone in 1876 and founding the Bell Telephone company in 1877.
• Watson: It is a patronymic surname of English and Scottish origin. Meaning "Son of Walter', the popular Old English gave names "Wat" or "Watt" was diminutive forms of the name Walter. Watson is 46th -most common surname in England and nineteenth most common in Scotland.
• Hence option 4 is correct.

The correct answer is Phanindra Nath Ghosh.

• The revolutionary Phanindranath Ghosh of Bihar attended the meeting of the Hindustan Socialist Republican Army in September 1928.
• Phanindra Nath Ghosh, who was previously a prime member of the Revolutionary Party, deceitfully betrayed the cause by becoming an approver and provided evidence that led to the execution of the revolutionaries in the Lahore conspiracy case.

The correct answer is Orville and Wilbur Wright.

• Orville and Wilbur Wright invented the Aeroplane in the year 1903.
• The Wright brothers are credited with inventing, building, and flying the world's the first successful airplane which was operated by motors.
• They created a three-axis control system, which helped in maintaining the equilibrium of an airplane and to control it properly.
• The name of the first successful aircraft they build in 1903 was the Wright Flyer. And, the first truly practical fixed-wing aircraft was the Wright Flyer III.

• Auguste and Louis Lumiere invented the photography equipment, they are known for their Cinematographe motion picture system.
• The first practical telephone and Graphophone was invented by Alexander Graham Bell.

Mahatma Gandhi had been present at the Round Table Conference(s) held in London Second.

(c) Bahadur Shah Zafar

The correct answer is B & D.

• Sachindra Nath Sanyal and Ram Prasad Bismil were the founder members of the Hindustan Republican Association.

• Hindustan Republican Association:
  • The HRA was founded in October 1924 in Kanpur.
  • Ram Prasad Bismil, Jogesh Chandra Chatterjee, and Sachin Sanyal with the name to organize and Armed Revolution to overthrow the colonial Government and established in its place the Federal Republic of United States of India whose basic principle would be the adult franchise.
  • Hindustan Republican Association was later renamed as Hindustan Socialist Republican Association.
  • Chandrashekhar Azad changed the name of HRA to the Hindustan Socialist Republican Association.

• Rama Prasad Bismil and Ashfaqulla Khan and others organized the Kakori robbery of 1925.

The correct answer is Ashfaqulla Khan.

• Ashfaqulla Khan was an important member of the Hindustan Republican Association, who along with his associates executed the train dacoity at Kakori.
• Hindustan Socialist Republican Association (HSRA) was a revolutionary organization established by Chandrasekhar Azad in the year 1928.
• The Kakori conspiracy occurred on 9th August 1925. Some people of the party including Bismil, Rajendra Lahiri, Ashfaqulla Khan, and Thakur Roshan Singh looted a train carrying government money near Lucknow.
• In 1927, all four men involved in this activity were hanged by the Government of India. 

• In 1928, the Simon Commission came to India. 
• In 1931, Bhagat Singh, Rajguru, and Sukhdev were hanged to death.

(b) Ashfaqullah

(a) Lord Hardinge

(d) Sachindra Sanyal

Where did the revolutionaries have their deliberations,Kanpur led to the formation of the Hindustan Republican Association.

The first Roundtable conference was from 12 November 1932 19 January 1931. Before this, Gandhiji had already started the civil disobedience movement on behalf of the Indian National Congress. Consequently, the Congress leaders were in jail and were not able to participate in the first conference. However, the representatives of all other Indian parties, as well as a number of Princes, did attend this conference. However, the outcome in the first Roundtable conference proved to be meaningless. It was proposed that India would develop into a federation, defence system would be improved, and the finance was also agreed. However, little efforts were made to implement these recommendations. Civil disobedience movement continued in India. The British government then realized that the Indian National Congress needed to be a part of this conference to decide the future of constitutional government in India.

Dinabandhu Mitra

(b) Neel Darpan

(b) Sir William Jones

The correct answer is Raj Kumar Shukla.

• Raj Kumar Shukla convinced Mahatma Gandhi to visit Champaran, which was a turning point in India’s struggle for independence.
• Raj Kumar Shukla was born on 23rd August 1875 in Satwaria village of Champaran in Bihar.
• He was a famous Indigo cultivator of Champaran and he was a money lender as well.
• He rose to fame for his close association with Gandhiji during the Champaran Satyagraha.

​​​

• Gandhiji returned to India in January 1915 after gaining experience in South Africa with his agitational/ protest methods.
  • After coming to India, he decided to travel to India and not take any position on any political matter for at least one year.
• In 1917 Gandhiji was requested to look into the problems of the farmers in the context of indigo planters of Champaran in Bihar.
• The European planters had been forcing the peasants to grow indigo on 3/20 part of the total land (called the tinkathia system).

• Recently, the Department of Posts has issued a Commemorative Postage Stamp on Rajkumar Shukla.

The correct answer is Bhadrapad Krishna Navami.

• Goga Navami:
  • This day is designated to worship Lokdevta Gogaji. 
  • The fair is held at a place called 'Gogamede'.
  • It took place in the Hanumangarh district. 
  • It is a very popular fair. 
  • People worship Lok Devta, Gogaji. 
  • This fair is held on Bhadrapad Krishna Navami.

• Gogaji - Lok Devta:
  • He is als o known as 'Gogapir' and 'Goga Bappa'. 
  • He is considered the god of snakes. 
  • His vehicle is Blue Horse. 
  • He has been worship by both Hindus and Muslims.  

Z₁ = (8 + j6) = 10 ∠ 36.87º ; Z₂ = (3 −j4) = 5∠ − 53.1º

Z = Z₁Z₂/(Z₁ + Z₂) = ((10 ∠ 36.87º) (5 ∠- 53.1º))/((8 + j6) + (3 - j4)) 

= (50 ∠ - 16.23º)/(11 + j2) 

= (50 ∠- 16.23º)/(11.18 ∠ 10.3º) = 4.47 ∠-26.53º

Let I = 25 ∠0º ; V = I Z = 25 ∠0º × 4.47 ∠−26.53º = 111.75 ∠−26.53º

I₁ = V/Z₁ = 111.75 ∠−26.53º/10∠36.87º = 11.175 ∠−63.4º 

I₂ = 111.75 ∠−26.53/5 ∠−53.1º = 22.35 ∠26.57º 

Now, the phase difference between V and I₁ is 63.4º − 26.53º = 36.87º with current lagging. 

Hence, cos φ₁ = cos 36.87º = 0.8. Power consumed in Z₁ = VI₁ cos φ = 11.175 × 111.75 × 0.8 = 990 W 

Similarly, φ₂ = 26.57 − (− 26.53) = 53.1º ; cos 53.1º = 0.6 

Power consumed in Z₂ = VI₂ cos φ₂ = 111.75 × 22.35 × 0.6 = 1499 W

The correct answer is Pluto.

• In 2006 the International Astronomical Union (IAU) redefined the planets to be the bodies in space having the following characteristics:
  • It is in orbit around the Sun.
  • It has sufficient mass to assume hydrostatic equilibrium (a nearly round shape).
  • It has cleared the neighborhood around its orbit.
• Pluto perfectly meets the two of these criteria but fails to fulfill the third.
• In all the billions of years it has lived there, it has not managed to clear its neighborhood.
• Clearing the neighborhood means that the planet has become gravitationally dominant — there are no other bodies of comparable size other than its own satellites or those otherwise under its gravitational influence, in its vicinity in space.
• There are some objects from the Kuiper Belt which is under the area of Pluto's gravitational area but the gravitational pull is not strong enough to pull these objects towards Pluto. 
• So from 2006 Pluto is considered a Dwarf Planet, not a planet.

The correct answer is A, B, and C.

• There are following four biodiversity hotspots in India:
• The Himalayas:
  • Includes the entire Indian Himalayan region (and that falling in Pakistan, Tibet, Nepal, Bhutan, China, and Myanmar). 
  • These Himalayan Mountains are the highest in the world and abode to some of the highest peaks of the world including Mount Everest and K2. Some of the major rivers in the world originate from the Himalayas. 
  • There are many endangered species in this region including one-horned rhinoceros, wild Asian water buffalo, and relict dragonfly whose only other species is found in Japan. 
• Indo-Burma:
  • Includes entire Northeastern India, except Assam and Andaman group of Islands (and Myanmar, Thailand, Vietnam, Laos, Cambodia, and southern China). 
  • Different species of mammals have been discovered in this region recently including large-antlered muntjac, Annamite Muntjac, grey-shanked douc, leaf deer, saola, and Annamite striped rabbit.
  • Other species such as monkeys, langurs, and gibbons too can be found here. Freshwater turtle species are also found in the region.
• The Sundalands:
  • Includes Nicobar group of Islands (and Indonesia, Malaysia, Singapore, Brunei, Philippines). 
  • These islands were declared as the world biosphere reserve in 2013 by the United Nations.
  • These islands have rich terrestrial as well as marine ecosystems including mangroves, seagrass beds, and coral reefs. Species such as dolphins, whales, turtles, crocodiles, fishes, prawns, lobsters, and seashells comprise marine biodiversity. 
• The Western Ghats and Sri Lanka:
  • Includes the entire Western Ghats which comprise Tamil Nadu, Kerala, Karnataka, Goa, Maharashtra, and Gujarat (and Sri Lanka). 
  • These hills are present along the western edge of peninsular India.
  • Since they are situated near the ocean, they are likely to receive a good amount of rainfall. Most of the deciduous, as well as rainforests, are present in this region.

The correct answer is the Dronacharya Award.

• The Dronacharya Award is given for sports coaching in honor of the Republic of India.
• The award is named after Guru Drona, an epic character from Mahabharata of ancient India. He was the teacher of Kauravas and Pandavas.
• The Dhronacharya (Lifetime) awardees, who were earlier given 5 lakh rupees are now given 15 lakh rupees as cash prize, while Dhronacharya (Regular) awardees now are given 10 lakh rupees instead of 5 lakh rupees per awardee. This revision in prize money was brought about recently in August 2020. 
• The award is given every year on 29 August by the Ministry of Youth Affairs and Sports on the occasion of National Sports Day. The award is distributed by the President of India.
• The award was instituted in 1985 and the first recipients of the award were Bhalchandra Bhaskar Bhagwat (Wrestling), Om Prakash Bhardwaj (Boxing), and O. M. Nambiar (Athletics). 
• The winners for 2020 for the life-time category are
  • Shri Dharmendra Tiwary (Archery),
  • Shri Purushotham Rai (Athletics),
  • Shri Shiv Singh (Boxing), 
  • Shri Romesh Pathania (Hockey), 
  • Shri Krishan Kumar Hooda (Kabaddi),
  • Shri Vijay Bhalchandra Munishwar (Para Powerlifting), 
  • Shri Naresh Kumar (Tennis), and
  • Shri Om Parkash Dahiya (Wrestling).
• The winners for 2020 for the regular category are 
  • Shri Jude Felix Sebastian (Hockey), 
  • Shri Yogesh Malviya (Mallakhamb), 
  • Shri Jaspal Rana (Shooting), 
  • Shri Kuldeep Kumar Handoo (Wushu), and 
  • Shri Gaurav Khanna (Para-Badminton).

correct option:

(B) 5/8

Given that the vertices of a triangle ABC are A(–4, 0), B(4, 0) and C(0, 3). 

The side length of AB = \(\sqrt{(4-(-4))^2+(0-0)^2}\) = \(\sqrt{(4+4)^2+0}\) = 8 unit. 

(By distance formula between two points) 

The side length of BC = \(\sqrt{(0-4)^2+(3-0)^2}\) = \(\sqrt{16+9}\) = \(\sqrt{25}\) = 5 unit. 

The side length of AC = \(\sqrt{(0-(-4))^2+(3-0)^2}\) = \(\sqrt{16+9}\) = \(\sqrt{25}\) = 5 unit. 

Hence, BC = AC = 5 unit in triangle ABC. 

∴ Triangle ABC is an isosceles triangle. 

Hence Proved

Given that first term of AP is a = 10. 

Also given that sum of first 14 terms of AP is 1505.

∴ For n = 14, S_n = 1505.

Let common difference of AP is d.

∴ S_n = 1505, where n = 14.

S_n = \(\frac{n}{2}\) [2 + ( − 1)] (By sum formula of first n terms of AP)

⇒ 1505 = \(\frac{14}{2}\) [2 × 10 + (14 − 1)] (∵ S_n = 1505, n = 14 and a = 10)

⇒ 3010 = 14 (20 + 13d)

⇒ 20 + 13d = \(\frac{3010}{14}=215\)

⇒ 13 d = 215 – 20 = 195

⇒ d = \(\frac{195}{13}=15.\)

Hence, common difference of AP is d = 15.

Now, 25^th term of AP is a₂₅ = a + (25 – 1)d = 10 + 24 × 15 = 10 + 360 = 370.

(∵ a = 10 & d = 15)

Hence, 25^th term of given AP is 370.

Concept:

• \(\rm d\over dx\)xn = nxn-1

Calculation:

Given \(\rm y^{2\over3} + x^{3\over2} + 3x^2 = 0\)

Differentiating with respect to x

\(\rm {2\over3}(y^{-1\over3}){dy\over dx} + {3\over2}(x^{1\over2}) + 3(2x) = 0\)

\(\rm {2\over3y^{1\over3}}{dy\over dx} = -{3\over2}x^{1\over2} -6x\)

\(\rm {dy\over dx} = {3y^{1\over3}\over2}\left[-{3\over2}x^{1\over2} -6x\right]\)

\(\rm {dy\over dx} = -{9\over4}x^{1\over2}y^{1\over3} -9xy^{1\over3}\)

Nellore. 

10. 7. 20xx. 

Dear Ravi, 

I hope that you are in good health and you are going along nicely in your studies. Here I’m very glad to inform you that my elder sister’s marriage is going to be take place on 25th July 20x x at Vasavi Kalyana Mandapam, Nellore. The bridegroom is an engineer. He is working in B.D.L. Hyderabad. Their is a nice family. They seem to be friendly and dignified people. One thing I want to mention here that they are I not taking any dowry and they did demand any greedy gifts. I shall be very glad to see at you and your family at the function. Please inform your parents about the same and tell them that my parents will be pleased if they attend the function. My father wants to call your father and mother and invite them on phone. I have already posted the invitation on your father’s name. I shall be very glad if you come two days before and help me in preparations. Convey my regards to your parents and my best wishes to your,little brother. Hoping that you will come, I remain. 

Yours lovingly, 

xxxxxx

Address on the Envelope: 

R Ravi Kumar, 

S/o Surya Narayana, 

H.No: 1 – 20 – 22/A, 

Malladivari street, 

Gandhinagar, 

Vijayawada.

Correct option is E) blade

Centre of gravity, in physics, an imaginary point in a body of matter where, for convenience in certain calculations, the total weight of the body may be thought to be concentrated.

(e) reversible adiabatic flow.

Correct option is (a) zero 

Correct option is  (a) zero 

(e) two isothermals and two isentropics.

Correct option is (b) positive