Question # 1

Which of the modulus of elasticity is involved in compressing a rod to decrease its length ?

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Young's modulus

Bulk modulus

Modulus of elasticity

None of these

The most suitable metal for making permanent magnet is.

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Iron

Aluminium

Steel

Copper

After curie temperature.

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Ferromagnetic

Paramagnetic

Magnetic

Diamagnetic

The ratio of applies stress to volumetric strain is called:

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Young modulus

Shear modulus

Bulk modulus

Tensile modulus

The critical temperature of mercury is.

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1.18 K

4.2 K

3.72 K

7.2 K

The curie temp for iron is about

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800^oC

740^oC

750^oC

650^oC

The unit of strain is:

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Nm

Nm^-2

no unit

Nm²

A solid having regular arrangement of molecules throughout its structure is called.

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Amorphous solid

Polymeric solid

Crystalline solid

Glassy solid

There is regular arrangement of molecules in:

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Amorphous solids

Crystalline solids

Both a and b

None of above

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