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Question 1
Heinrich Rudolph laid the foundation for the future development of radio, telephone and telegraph. The SI unit of _____ was named as ‘hertz’ in his honour.
Question 2
Identify the SI unit of electrical resistance.
Question 3
Which of the following instruments measures infra-red radiation?
Question 4
A reversible and an irreversible engine are working between the same limits of temperature. The efficiency of
Question 5
Hydraulic brakes used in automatic vehicles is direct virtual application of which law?
Question 6
The force of attraction between an electron revolving around the nucleus and the nucleus is a _______ force?
Question 7
Which of the following elements has the highest electrical conductivity?
Question 8
Which is the most suitable unit for expressing nuclear radius?
Question 9
Sounds of frequencies below 20 Hz are called _________
Question 10
Which type of mirror is used by dentists to see large images of teeth?
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Apr 23SSC & Railway
