Physics We feel cool when we sit near the fan, this is because Fan cools surrounding air. Air vapourises the sweat on our body. We feel cool when air touches the body. Fan gives cool air. Fan cools surrounding air. Air vapourises the sweat on our body. We feel cool when air touches the body. Fan gives cool air. ANSWER DOWNLOAD EXAMIANS APP
Physics Bolometer is used to measure Frequency Velocity Temperature Wavelength Frequency Velocity Temperature Wavelength 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? Circular plate All will cool at the same rate Cube Sphere Circular plate All will cool at the same rate Cube Sphere ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following properties is found only in ferromagnetic materials ? Susceptibility independent of temperature Point in a particular direction Attracting a magnetic substance Hysteresis Susceptibility independent of temperature Point in a particular direction Attracting a magnetic substance Hysteresis ANSWER DOWNLOAD EXAMIANS APP
Physics In a bipolar junction transistor The collector has the least concentration of impurity The emitter has the least concentration of impurity All the three regions (the emitter, the base and the collector) have equal concentrations of impurity The base has the least concentration of impurity The collector has the least concentration of impurity The emitter has the least concentration of impurity All the three regions (the emitter, the base and the collector) have equal concentrations of impurity The base has the least concentration of impurity ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following instruments is used to study dispersion of light ? Microscope Spectrometer Photometer Telescope Microscope Spectrometer Photometer Telescope ANSWER DOWNLOAD EXAMIANS APP
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