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Physics

Physics
The pressure exerted by a 760 mm column of mercury at 0°C is known as

1 bar
1 pascal
1 atmosphere
1 poise

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Physics
When hot liquid is poured into a thick glass tumbler, it cracks because glass :

Has high temperature coefficient of expansion
Is a bad conductor of heat so only inner surface expands
Has a very low specific heat
Has low temperature coefficient of expansion

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Physics
A spherical ball made of steel when dropped in mercury container

Will dissolve in mercury
Will be partly immersed mercury
Will be on the surface of mercury
Sink in mercury

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Physics
The term ''Higgs Boson' is associated with

Nano Technology
God Particle
Oncology
Stem Cell Research

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Physics
A soap bubble shows colours when illuminated with white light. This is due to

Reflection
Interference
Polarisation
Diffraction

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Physics
The strength of an electromagnet can be increased by

Increasing current supply
All of these
Increasing the number of turns
Increasing the length of the coiled wire

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