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PHYSICS

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

Thermistor
Thermometer
Thermocouple
Pyrometer

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Physics
Supercooling is cooling of liquid ________

Above melting point
Below freezing point
Below melting point
At melting point

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Physics
Liquids and gases never show

Diamagnetic property
Paramagnetic property
Ferromagnetic property
Electromagnetic property

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Physics
A circular plate, a cube and a sphere, all made up of same material and having the samemass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling?

Circular plate
Cube
All will cool at the same rate
Sphere

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Physics
In a freezer ice cubes will be formed more quickly in trays made of

Rubber
Plastic
Wood
Aluminium

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