Physics It is easier to roll a stone up a sloping road than to lift it vertical upwards because Work done in rolling is more than in lifting. Work done in rolling a stone is less than in lifting it. Work done in lifting the stone is equal to rolling it. Work done in both is same but the rate of doing work is less in rolling. Work done in rolling is more than in lifting. Work done in rolling a stone is less than in lifting it. Work done in lifting the stone is equal to rolling it. Work done in both is same but the rate of doing work is less in rolling. ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following waves cannot be polarised? Ultrasonic Ultra violet Infrared Radio Ultrasonic Ultra violet Infrared Radio ANSWER DOWNLOAD EXAMIANS APP
Physics Necessary element of change in solar energy to electrical energy Pure Copper Berillium Silicon Tantelum Pure Copper Berillium Silicon Tantelum ANSWER DOWNLOAD EXAMIANS APP
Physics The atmosphere is heated mainly by Convection Conduction Insolation Radiation Convection Conduction Insolation Radiation ANSWER DOWNLOAD EXAMIANS APP
Physics Optical fiber works on the principle of Interference Total internal reflection Scattering Refraction Interference Total internal reflection Scattering Refraction ANSWER DOWNLOAD EXAMIANS APP
Physics What is the wavelength of visible spectrum ? 8500 A° – 9800 A° 1300 A°–3000 A° 3900 A° – 7600 A° 7800 A° – 8000 A° 8500 A° – 9800 A° 1300 A°–3000 A° 3900 A° – 7600 A° 7800 A° – 8000 A° ANSWER DOWNLOAD EXAMIANS APP
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