Physics What is the wavelength of visible spectrum ? 3900 A° – 7600 A° 7800 A° – 8000 A° 8500 A° – 9800 A° 1300 A°–3000 A° 3900 A° – 7600 A° 7800 A° – 8000 A° 8500 A° – 9800 A° 1300 A°–3000 A° ANSWER DOWNLOAD EXAMIANS APP
Physics The best material for the core of a transformer is Hard steel Soft iron Mild steel Stainless steel Hard steel Soft iron Mild steel Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Physics Specific gravity is defined as the ratio of Density of the substance to the density of water at 0°C Density of the substance to the density of water at 4°C Density of the substance to the density of water Density of water at 4°C to the density of the substance Density of the substance to the density of water at 0°C Density of the substance to the density of water at 4°C Density of the substance to the density of water Density of water at 4°C to the density of the substance ANSWER DOWNLOAD EXAMIANS APP
Physics Electron microscope works on which of the following principles? Motion of charged particle in electromagnetic fields Wave Nature of electrons Optical interference Faraday's law of Electromagnetic induction Motion of charged particle in electromagnetic fields Wave Nature of electrons Optical interference Faraday's law of Electromagnetic induction 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 All will cool at the same rate Circular plate Cube Sphere All will cool at the same rate Circular plate Cube ANSWER DOWNLOAD EXAMIANS APP
Physics A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ . Gravitational force between train and man Pressure difference due to fast moving air in between Illusion of the man The centripetal force Gravitational force between train and man Pressure difference due to fast moving air in between Illusion of the man The centripetal force ANSWER DOWNLOAD EXAMIANS APP