Physics
Which of the following device is best suited for measuring the temperature inside metallurgical furnaces?

Thermometer
Pyrometer
Thermistor
Thermocouple

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Physics
Which of the following is not a property of heavy water ?

Density of heavy water is higher than that of ordinary water
It produces corrosion
Boiling point of heavy water is lower than that or ordinary water
Freezing point of heavy water is higher than that of ordinary water

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Physics
An integrated circuit is more advantages than a coventional circuit because

If a part of the integrated circuit fails the entire circuit is simply replaced
They make the electric equipments more reliable and easier for servicing
A faulty part of a conventional circuit may be difficult to locate and repair
All listed here

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