Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Is a bad conductor of heat so only inner surface expands Has high temperature coefficient of expansion Has a very low specific heat Has low temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has high temperature coefficient of expansion Has a very low specific heat Has low temperature coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics Red light is used for signals because it has High intensity High frequency Long wavelength Low refraction in the medium High intensity High frequency Long wavelength Low refraction in the medium ANSWER DOWNLOAD EXAMIANS APP
Physics 'Mirage' is an example of Refraction and total internal reflection of light Total internal reflection of light only Dispersion of light only Refraction of light only Refraction and total internal reflection of light Total internal reflection of light only Dispersion of light only Refraction of light only ANSWER DOWNLOAD EXAMIANS APP
Physics Acceleration is the rate of change of Jerk Speed Velocity Jounce Jerk Speed Velocity Jounce ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC, because plastics have a higher thermal conductivity than metals metals have higher thermal capacity than plastics plastics have a lower density than metals metals are good conductor of heat plastics have a higher thermal conductivity than metals metals have higher thermal capacity than plastics plastics have a lower density than metals metals are good conductor of heat ANSWER DOWNLOAD EXAMIANS APP
Physics Necessary element of change in solar energy to electrical energy Pure Copper Silicon Tantelum Berillium Pure Copper Silicon Tantelum Berillium ANSWER DOWNLOAD EXAMIANS APP
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