Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Has a very low specific heat Has low temperature coefficient of expansion Has high temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has a very low specific heat Has low temperature coefficient of expansion Has high temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is arranged in order of decreasing conductivity? Silver, Copper, Aluminium, Steel Aluminium, Silver, Copper, Steel Copper, Aluminium, Steel, Silver Copper, Silver, Aluminium, Steel Silver, Copper, Aluminium, Steel Aluminium, Silver, Copper, Steel Copper, Aluminium, Steel, Silver Copper, Silver, Aluminium, Steel ANSWER DOWNLOAD EXAMIANS APP
Physics Bandwidth is the A measure of the width of a range of frequencies None of these Both a & b The rate of data transfer A measure of the width of a range of frequencies None of these Both a & b The rate of data transfer ANSWER DOWNLOAD EXAMIANS APP
Physics Sound waves in air are longitudinal polarised transverse electromagnetic longitudinal polarised transverse electromagnetic ANSWER DOWNLOAD EXAMIANS APP
Physics A person lifts luggage of 20 kg from the ground and puts it on his head 2m above the ground. Calculate the work done by him. (g = 10 ) 400J 40J 20 J 200J 400J 40J 20 J 200J ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following are used for accurately measuring very small time intervals ? Quartz clocks Atomic clocks White dwarfs Pulsars Quartz clocks Atomic clocks White dwarfs Pulsars ANSWER DOWNLOAD EXAMIANS APP
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