Physics Which of the following principle is used to produce ''low-temperatures' ? Adiabatic demagnetisation Thermo-electric effect Super conductivity Joule-Kelvin effect Adiabatic demagnetisation Thermo-electric effect Super conductivity Joule-Kelvin effect ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following criterion is used for any metal to be used as a cooking material ? Less thermal conductivity Less electrical conductivity More specific heat More thermal conductivity Less thermal conductivity Less electrical conductivity More specific heat More thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Physics A parallel-plate capacitor of capacitance C1 is made using two gold plates. Another parallel-plate capacitor of capacitance C2 is made using two aluminium plates with same plate separation, and all the four plates are of same area. If rg and ra are respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct? C1pa = C2pg C1 = C2 C2>C1 C1>C2 C1pa = C2pg C1 = C2 C2>C1 C1>C2 ANSWER DOWNLOAD EXAMIANS APP
Physics Shaving mirror is Plane Parabolic Convex Concave Plane Parabolic Convex Concave ANSWER DOWNLOAD EXAMIANS APP
Physics The damage of the human body due to radiation (X-rays or grays etc,) is measured in : Curie Rems Roentgen Rads Curie Rems Roentgen Rads ANSWER DOWNLOAD EXAMIANS APP
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