Physics Which of the following principle is used to produce ''low-temperatures' ? Thermo-electric effect Adiabatic demagnetisation Joule-Kelvin effect Super conductivity Thermo-electric effect Adiabatic demagnetisation Joule-Kelvin effect Super conductivity ANSWER DOWNLOAD EXAMIANS APP
Physics When an unbalanced force acts on an object Causes change in motion of the object The speed & direction of the object will change Causes the object to move All of these Causes change in motion of the object The speed & direction of the object will change Causes the object to move All of these ANSWER DOWNLOAD EXAMIANS APP
Physics Lightning is caused due to Electric power Electric pressure Electric discharge Electric leak Electric power Electric pressure Electric discharge Electric leak ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is correct about the properties of Gravitational Forces? Both a and b They observe inverse square law None They are the strongest forces in nature Both a and b They observe inverse square law None They are the strongest forces in nature ANSWER DOWNLOAD EXAMIANS APP
Physics Which microscope is often used to view metal surfaces? Optical microscopes None of these Electron microscopes Scanning tunneling microscopes Optical microscopes None of these Electron microscopes Scanning tunneling microscopes ANSWER DOWNLOAD EXAMIANS APP
Physics A circular plate, a cube and a sphere, all made up of same material and having the samemass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling? Sphere Circular plate Cube All will cool at the same rate Sphere Circular plate Cube All will cool at the same rate ANSWER DOWNLOAD EXAMIANS APP
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