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Physics

Physics
Lens is made up of which glass

Flint glass
Cobalt glass
Ordinary glass
Pyrex glass

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Physics
On the Kelvin scale, the melting point of ice is

273K
373K
0 K
100K

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Physics
The sparkling of a diamond is due to

Total internal reflection of light
Polarisation of light
Refraction of light
Interference of light

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

Pyrometer
Thermometer
Thermistor
Thermocouple

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Physics
After long periods of use, a grey spot develops on the inside of a bulb. This is because

The tungsten filament evaporates and collects there
Glass undergoes a change due to the heat
Dust inside the bulb condenses on the top
The heat of the bulb scorches the glass at the top

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Physics
What is the process of conversion of solid state directly to gaseous state called?

Evaporation
Sublimation
Distillation
Condensation

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MORE MCQ ON Physics

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