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Solid State Physics


1. 

Which one of the following process is used to purify a soluble solid?

Answer : B. Crystallisation

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2. 

Crystals having low melting points are in

Answer : D. Metallic bond

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3. 

The working of a quartz crystal in the watch is based on the

Answer : C. Piezo-electric effect

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4. 

I. Graphite is an allotrope of carbon II. Diamond is metal

Answer : D. true,false

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5. 

Nodes are

Answer : B. positions of no displacement

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6. 

The lowest level energy band in a solid is called

Answer : A. Valence band

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