Physics Which of the following waves cannot be polarised? Infrared Ultrasonic Radio Ultra violet Infrared Ultrasonic Radio Ultra violet ANSWER DOWNLOAD EXAMIANS APP
Physics The spring constant of a spring depends on its Length only Length and its diameter Thickness, its diameter and its material Material only Length only Length and its diameter Thickness, its diameter and its material Material only ANSWER DOWNLOAD EXAMIANS APP
Physics Why does'nt the hydrogen atom emit X-rays? It has only one electron Its energy levels are very close to each other It is highly electropositive It is very small in size It has only one electron Its energy levels are very close to each other It is highly electropositive It is very small in size ANSWER DOWNLOAD EXAMIANS APP
Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Has a very low specific heat Has high temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has low temperature coefficient of expansion Has a very low specific heat Has high temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has low temperature coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics What is the escape velocity of the rocket in the earth? 11.2 km/sec 13.2 km/sec 12.2 km/sec 10.2 km/sec 11.2 km/sec 13.2 km/sec 12.2 km/sec 10.2 km/sec ANSWER DOWNLOAD EXAMIANS APP
Physics Sun's heat reaches us by Radiation Conduction Convection Reflection Radiation Conduction Convection Reflection ANSWER DOWNLOAD EXAMIANS APP
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