Physics Which of the following principle is used to produce ''low-temperatures' ? Adiabatic demagnetisation Super conductivity Joule-Kelvin effect Thermo-electric effect Adiabatic demagnetisation Super conductivity Joule-Kelvin effect Thermo-electric effect ANSWER DOWNLOAD EXAMIANS APP
Physics On the Kelvin scale, the melting point of ice is 100K 373K 273K 0 K 100K 373K 273K 0 K ANSWER DOWNLOAD EXAMIANS APP
Physics The speed of sound in air depends on Frequency Wavelength None of these Temperature Frequency Wavelength None of these Temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Transformer is a device to convert Low voltage D.C. into high voltage D.C. Low voltage A.C. into high voltage A.C. Mechanical energy into Electrical energy C. to A.C. Low voltage D.C. into high voltage D.C. Low voltage A.C. into high voltage A.C. Mechanical energy into Electrical energy C. to A.C. ANSWER DOWNLOAD EXAMIANS APP
Physics The force that keeps a body in a circular motion called The centrifugual force The centripetal force All listed here The frictional force The centrifugual force The centripetal force All listed here The frictional force ANSWER DOWNLOAD EXAMIANS APP
Physics Red light is used for signals because it has Long wavelength High intensity Low refraction in the medium High frequency Long wavelength High intensity Low refraction in the medium High frequency ANSWER DOWNLOAD EXAMIANS APP
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