Physics When a piece of pure silicon is doped with aluminium, then The doped silicon piece will become n-type The doped silicon piece will become p-type The conductivity of the doped silicon piece will remain the same The resistivity of the doped silicon piece will increase The doped silicon piece will become n-type The doped silicon piece will become p-type The conductivity of the doped silicon piece will remain the same The resistivity of the doped silicon piece will increase ANSWER DOWNLOAD EXAMIANS APP
Physics Safety fuse wire used in domestic electrical appliances is made of metal of low Resistance Conductance Melting point Specific gravity Resistance Conductance Melting point Specific gravity ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following colour of light deviates least through the prism? Violet Green Yellow Red Violet Green Yellow Red ANSWER DOWNLOAD EXAMIANS APP
Physics In a refrigerator what produces the cooling ? The evaporation of a volatile liquid The sudden expansion of a compressed gas None of these The ice which deposits on the freezer The evaporation of a volatile liquid The sudden expansion of a compressed gas None of these The ice which deposits on the freezer ANSWER DOWNLOAD EXAMIANS APP
Physics Mirage is due to: Magnetic disturbances in the atmosphere Equal heating of different parts of the atmosphere Depletion of ozone layer in the atmosphere Unequal heating of different parts of the atmosphere Magnetic disturbances in the atmosphere Equal heating of different parts of the atmosphere Depletion of ozone layer in the atmosphere Unequal heating of different parts of the atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Energy of Ultraviolet rays is great than Cosmic rays X-rays Infrared rays Gamma rays Cosmic rays X-rays Infrared rays Gamma rays ANSWER DOWNLOAD EXAMIANS APP
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