Scientist
Question : Which pioneer scientist used radio waves to transmit signals over distances of several kilometres in the 1890s?
Option 1: Michael Faraday
Option 2: Paul Langevin
Option 3: Guglielmo Marconi
Option 4: Pierre Weiss
Correct Answer: Guglielmo Marconi
Solution : The correct option is Guglielmo Marconi.
Guglielmo Marconi was a trailblazing scientist who, in the 1890s, used radio waves to send signals across several kilometres. Marconi, an Italian inventor and electrical engineer, is credited with being one of the key figures in the development
Question : Given below are four sentences, three of which, are jumbled. Pick the option that gives the correct order.
A. For example, though there is a close relation between invention and science and engineering, an inventor is not necessarily a scientist or an engineer. B. An engineer, on the other hand, uses existing technology and scientific understanding to design better objects or processes, but an inventor creates something that had never previously existed. C. Inventors defy definition; as a result, they are frequently defined by what they are not. D. A scientist is said to be a discoverer-that is, somebody who by acute observation and brilliant analysis is able to find and explain something that already exists in nature.
Option 1: CBAD
Option 2: CBDA
Option 3: CADB
Option 4: CDBA
Correct Answer: CADB
Solution : The correct choice is the third option.
The paragraph starts with sentence C, which introduces the idea that inventors are challenging to define and are often described by what they are not. It is followed by sentence A, which provides an example
Question : The scientist who first sent electromagnetic waves to distant places is
Option 1: James Clerk Maxwell
Option 2: Heinrich Hertz
Option 3: Thomas Alva Edison
Option 4: John Logie Baird
Correct Answer: Heinrich Hertz
Solution : The correct option is Heinrich Hertz.
Heinrich Hertz was the physicist who first transmitted electromagnetic waves across a substantial distance. In the latter half of the 19th century, he carried out experiments that demonstrated the existence of electromagnetic waves and their capacity to
Question : In which year was the Doppler effect discovered by Austrian scientist Christian Doppler, which describes the change in frequency of any kind of sound or light wave produced by a moving source concerning an observer?
Option 1: 1846
Option 2: 1844
Option 3: 1842
Option 4: 1840
Correct Answer: 1842
Solution : The correct answer is 1842.
Christian Doppler, an Austrian physicist, initially described the Doppler Effect in 1842. It is visible when the pitch of a vehicle's horn changes as it approaches and recedes from the observer. Christian Doppler first tested the effect of motion
Being an applied scientist in India is a very wise profession. To do a job that a scientist genuinely covers, you need to have proper dedication, immense interest in your work and a good grip in research. For being a scientist you need to posses the basic degrees like :
Hi Candidate,
If you are interested in MSc Physics, then you must go ahead with your interest. Complete your undergraduation, then go for MSc physics. Later, ISRO Centralised Recruitment Board (ICRB) which conducts an entrance exam for the recruitment of vacancies in technical posts/researchers/scientists etc. Check out the pattern, syllabus
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