File Name: science and technology current affairs 2018 .zip
A new optical disc format known as the Blu-ray Disc BD is becoming popular.
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A new optical disc format known as the Blu-ray Disc BD is becoming popular. In what way is it different from the traditional DVD? Thickness of BD is 2. Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when: The orbit is geosynchronous. The orbit is circular, 3. The orbit is at an altitude of 22, km.
Bluetooth uses 2. When information is transmitted between two devices using Blue-tooth technology, the devices have to be in the line of sight of each other, but when Wi-Fi technology is used the devices need not be in the line of sight of each other d.
The statements a and b given above are correct in this context. It is a private computer network of an organization where the remote users can transmit encrypted information through the server of the organization b. It is a computer network in which users can access a shared pool of computing resources through a service provider. None of the statements a , b and c given above is a correct description of Virtual Private Network. A genetically engineered form of brinjal, known as the Bt-brinjal, has been developed.
The objective of this is To make it pest-resistant b. To improve its taste and nutritive qualities c. To make it drought-resistant d. To make its shelf-life longer. Other than resistance to pests, what are the prospects for which genetically engineered plants have been created? To enable them to withstand drought 2. To increase the nutritive value of the produce 3. To enable them to grow and do photosynthesis in spaceships and space stations 4.
To increase their shelf life. Across different species of plants. From animals to plants. From microorganisms to higher organisms. Mycorrhizal biotechnology has been used in rehabilitating degraded sites because mycorrhiza enables the plants to Resist drought and increase absorptive area 2.
Tolerate extremes of PH 3. Resist disease infestation. In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person? It is one of the thinnest but strongest materials tested so far. It is entirely made of silicon and has high optical transparency. Electromagnetic radiation 2.
Geothermal energy 3. Gravitational force 4. Plate movements 5. Rotation of the earth 6. Revolution of the earth. Which of the above are responsible for bringing dynamic changes on the surface of the earth?
Meeting of cumulonimbus clouds in the sky 2. Lightning that separates the nimbus clouds 3. Violent upward movement of air and water particles. Size of the sun at dusk 2. Colour of the sun at dawn 3. Moon being visible at dawn 4. Twinkle of stars in the sky 5. Polestar being visible in the sky. Rainbow is produced when sunlight falls on drops of rain. Which of the following physical phenomena are responsible for this? Dispersion 2. Refraction 3. Internal reflection. Select the correct Solution using the codes given below.
A team of scientists at Brookhaven National Laboratory including those from India created the heaviest anti-matter anti-helium nucleus. It will make mineral prospecting and oil exploration easier and cheaper. It will help probe the possibility of the existence of stars and galaxies made of anti-matter. It will help understand the evolution of the universe. The efforts to detect the existence of Higgs boson particle have become frequent news in the recent past. It will enable us to understand as to why elementary particles have mass.
It will enable us in the near future to develop the technology to transferring matter from one point to another without traversing the physical space between them.
It will enable us to create better fuels for nuclear fission. Detection of microwaves in space 2. Observation of redshift phenomenon in space 3. Movement of asteroids in space 4. Occurrence of supernova explosions in space. What prevents them from reaching the surface of the Earth? The known forces of nature can be divided into four classes, viz, gravity electromagnetism, weak nuclear force and strong nuclear force.
With reference to them, which one of the following statements is not correct? A married couple adopted a male child, A few years later; twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive, and O positive. The blood group of the adopted son is Cannot be determined on the basis of the given data. At present, scientists can determine the arrangement or relative positions of genes or DNA sequences on a chromosome.
How does this knowledge benefit us? It is possible to know the pedigree of livestock. It is possible to understand the causes of all human diseases. It is possible to develop disease-resistant animal breeds. Stem cells can be derived from mammals only. Stem cells can be used for screening new drugs. Stem cells can be used for medical therapies. Which of the following diseases can be transmitted from one person to another through tattooing? Viruses lack enzymes necessary for the generation of energy.
Viruses can be cultured in any synthetic medium. The surface of a lake is frozen in severe winter, but the water at its bottom is still liquid. What is the reason? Ice is a bad conductor of heat b. Since the surface of the lake is at the same temperature as the air, no heat is lost c. None of the statements a , b and c given above is correct. Slow down the speed of neutrons b. Increase the speed of neutrons c. Cool down the reactor d.
Stop the nuclear reaction. To meet its rapidly growing energy demand, some opine that India should pursue research and development on thorium as the future fuel of nuclear energy. In this context, what advantage does thorium hold over uranium? Thorium is far more abundant in nature than uranium.
Current Affairs is of paramount importance for the preparation of the Civil Services Exam for all the 3 stages of the exam. At the end of each month students are asked to appear for monthly quiz on current affairs, which helps in revision of current affairs. Apart from comprehensive coverage of the exam related articles the portal is regularly uploaded with editorial summary analysis, important magazine summaries, Answer writing practice, Prelim Test Series, Main Exam Test Series etc. App users have the privilege to access the achieve section of the current affairs news as well the daily quiz at a later date. The current affairs magazine does not merely provide information, but focuses on the analysis on current issues necessary for the exam.
Science and technology free pdf download in hindi and english for all govt Science & Technology Current Affairs UPSC Exam Set 1 By Anirudh sir 25.
War made the state, and the state made war, but does this statement hold true today? Will it apply in the future? The consensus is that the absence of major war within the western world, post , did cause the war—state relationship to change, but each became significantly less important to the other. This article argues that the relationship was closer and deeper than has been assumed. It proposes that the peculiar strategic conditions created by the nuclear age caused states to wage a ritualistic style of war, in which demonstration rather than the physical application of violence became increasingly important.
Doorsteptutor material for UGC Public-Administration is prepared by world's top subject experts: Get detailed illustrated notes covering entire syllabus : point-by-point for high retention. Last Updated: Mar 10, Plants have unique abili … more words ….
Science and Technology have always been an integral section of all Government examinations. Modern India has had a strong focus on Science and Technology, realizing that it is an important element for economic growth. India is among the topmost Countries in the World in the field of scientific research and is currently ranked amongst the top five nations in the field of space exploration. The Country has regularly undertaken space missions, including missions to the moon and the famed Polar Satellite Launch Vehicle.
Digital technology is incorporated into nearly every facet of American life, from commerce, community, healthcare, food systems, transportation, education, media, entertainment, and employment. Its increasingly integral nature raises critical questions moving forward, such as what emerging technologies are complicating the ability to verify authenticity and integrity in a digital world? Also, what emerging technologies enable the creation of systems of trust that enforce standards of authenticity, integrity, and security? How can partnerships between government, universities, and companies shape public policy to prioritize authenticity and integrity within systems—and who will be the stewards and custodians of such systems? To address these and related questions, the National Academies of Sciences, Engineering, and Medicine held a workshop on February , Through presentations from experts and robust discussions, the workshop focused on technologies, processes, and governance that affect digital privacy and security now and into the coming decades.
Check your AIR here. Important Links See All. Start Test. Access to COVID vaccines, cooperation on technology, and climate change are on the top of the agenda in the summit. Click to View More.
You can check the Yearly Review of Science and Technology 20by clicking on the link given below. Science and Technology Yearly.
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