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Physical Quantities, Standards and Units


19. 

The unit of power is

Answer : A. kilowatt

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20. 

The unit of impedance is

Answer : A. Ohm

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21. 

Match List I(Quantity) with List - II (Units) and select the correct answer using the options

List I List II
a) High speed 1) Mach
b) Wavelength 2) Angstrom
c) Pressure 3) Pascal
d) Energy 4) Joule

Answer : C. a-1 ,b-2 ,c-3 ,d-4

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22. 

1 micron is

Answer : C. 10-6 metre

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23. 

Watt = Volt x__________________

Answer : B. ampere

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24. 

Which one of the following is NOT correctly matched?

Answer : B. Celcius -Name of a king

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