1.

Precise measurements of physical quantities are a need of science. For example, to ascertain the speed of an aircraft, one must have an accurate method to find its positions at closely separated instants of time. This was the actual motivation behind the discovery of radar in World War II. Think of different examples in modern science you can, give a quantitative idea of the precision needed.

Answer» <html><body><p></p>Solution :In modern science accurate measurement is necessary. For example in statellite <a href="https://interviewquestions.tuteehub.com/tag/launch-1069588" style="font-weight:bold;" target="_blank" title="Click to know more about LAUNCH">LAUNCH</a> system time of `1mus` accuracy is required. <br/> While dealing with LASER <a href="https://interviewquestions.tuteehub.com/tag/distance-116" style="font-weight:bold;" target="_blank" title="Click to know more about DISTANCE">DISTANCE</a> (<a href="https://interviewquestions.tuteehub.com/tag/length-1071524" style="font-weight:bold;" target="_blank" title="Click to know more about LENGTH">LENGTH</a>) `1Å(1Å=<a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a>^(-10)m)` measurement is required. <br/> Also in measurement of size of <a href="https://interviewquestions.tuteehub.com/tag/nucleus-18220" style="font-weight:bold;" target="_blank" title="Click to know more about NUCLEUS">NUCLEUS</a> accuracy of `10^(-15)m` is required. When mass of molecule is measured by using mass spectometer accuracy of `10^(-30)` kg is required.</body></html>


Discussion

No Comment Found

Related InterviewSolutions