Physics Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by Carbon dioxide Ozone Ammonia Chlorine Carbon dioxide Ozone Ammonia Chlorine ANSWER DOWNLOAD EXAMIANS APP
Physics Friction is caused by the ________ on the two surfaces in contact. Smoothness Densities Gaps Irregularities Smoothness Densities Gaps Irregularities ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works by the principle of Diffraction Reflection Total internal reflection Refraction Diffraction Reflection Total internal reflection Refraction ANSWER DOWNLOAD EXAMIANS APP
Physics Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2 140 m/s 0.14 m/s 1.4 km/s 14 m/s 140 m/s 0.14 m/s 1.4 km/s 14 m/s ANSWER DOWNLOAD EXAMIANS APP
Physics In general, which is the cause of a land breeze? Heat Pressure Temperature None of these Heat Pressure Temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to: Both the heating effect of current and hysteresis loss The heating effect of current alone Intense sunlight at noon Hysteresis loss alone Both the heating effect of current and hysteresis loss The heating effect of current alone Intense sunlight at noon Hysteresis loss alone ANSWER DOWNLOAD EXAMIANS APP
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