Materials and Components The resistance of a photoconductor Remains constant Decreases with increase in light intensity May increase or decrease with increase in light intensity Increases with increase in light intensity Remains constant Decreases with increase in light intensity May increase or decrease with increase in light intensity Increases with increase in light intensity ANSWER DOWNLOAD EXAMIANS APP
Materials and Components In solid insulator materials having only one kind of atom, the types of polarization which exist are Electronic and ionic Electronic only Electronic, ionic and permanent Electronic and ionic Electronic only Electronic, ionic and permanent ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The elements which become superconducting at extremely low temperatures are Good conductors at room temperature Relatively poor conductors at room temperature Ferromagnetic at room temperature Insulators at room temperature Good conductors at room temperature Relatively poor conductors at room temperature Ferromagnetic at room temperature Insulators at room temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Components In van der walls crystals, there exists a high degree of stability of the outer electron shell. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components As the atoms of rare gases become larger, electronic polarizability Remains the same May increase or decrease Increases Decreases Remains the same May increase or decrease Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Materials and Components If a small amount of Cu is added to Ni conductor, then Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni Resistivity of Ni remains the same Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni Resistivity of Ni remains the same Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres ANSWER DOWNLOAD EXAMIANS APP
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