Physics Compressions and Rarefactions are characteristic of Longitudinal waves Both A & B Neither of A & B Transverse waves Longitudinal waves Both A & B Neither of A & B Transverse waves ANSWER DOWNLOAD EXAMIANS APP
Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Has low temperature coefficient of expansion Has high temperature coefficient of expansion Has a very low specific heat Is a bad conductor of heat so only inner surface expands Has low temperature coefficient of expansion Has high temperature coefficient of expansion Has a very low specific heat Is a bad conductor of heat so only inner surface expands ANSWER DOWNLOAD EXAMIANS APP
Physics The purpose of choke in a fluorescent lamp is : To increase the current flow To decrease the resistance Ro decrease the voltage momentarily To decrease the current flow To increase the current flow To decrease the resistance Ro decrease the voltage momentarily To decrease the current flow ANSWER DOWNLOAD EXAMIANS APP
Physics Every hot object emits ________ Infrared rays Ultraviolet rays Visible light X–rays Infrared rays Ultraviolet rays Visible light X–rays ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is used for sun glasses ? Crystal glass Flint glass Pyrex glass Crooks glass Crystal glass Flint glass Pyrex glass Crooks glass ANSWER DOWNLOAD EXAMIANS APP
Physics Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s 0.016 0.008 2000 1000 0.016 0.008 2000 1000 ANSWER DOWNLOAD EXAMIANS APP
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