Physics The commonly used coolant in refrigerators is Nitrogen Freon Ammonia Oxygen Nitrogen Freon Ammonia Oxygen ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following properties is found only in ferromagnetic materials ? Point in a particular direction Susceptibility independent of temperature Hysteresis Attracting a magnetic substance Point in a particular direction Susceptibility independent of temperature Hysteresis Attracting a magnetic substance ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following principle is used to produce ''low-temperatures' ? Adiabatic demagnetisation Joule-Kelvin effect Super conductivity Thermo-electric effect Adiabatic demagnetisation Joule-Kelvin effect Super conductivity Thermo-electric effect ANSWER DOWNLOAD EXAMIANS APP
Physics 1 Micron is equal to 10–6 m 10–9 m 10–12 m 10–15 m 10–6 m 10–9 m 10–12 m 10–15 m ANSWER DOWNLOAD EXAMIANS APP
Physics The force of friction between two surfaces will increase if: Air gap is created between the two surfaces Irregularities on both the surfaces are removed A layer of lubricant is kept between the two surfaces The two surfaces are pressed harder Air gap is created between the two surfaces Irregularities on both the surfaces are removed A layer of lubricant is kept between the two surfaces The two surfaces are pressed harder ANSWER DOWNLOAD EXAMIANS APP
Physics When a barometer is rising air pressure is Increasing Zero Decreasing Constant Increasing Zero Decreasing Constant ANSWER DOWNLOAD EXAMIANS APP
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