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Q.

A hole is

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a

An unfilled covalent bond

b

An excess electron in covalent bond

c

A positively charge electron

d

An electron in Valence Band

answer is C.

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Detailed Solution

A hole is an absence of an electron in a particular place in an atom. Although it is not a physical particle in the same sense as an electron, a hole can be passed from atom to atom in a semiconductor material. Electrons and holes, both, are the charge carriers in any semiconductor substance. A hole is an unfilled covalent bond

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