Physics The force of friction between two surfaces will increase if: A layer of lubricant is kept between the two surfaces Irregularities on both the surfaces are removed The two surfaces are pressed harder Air gap is created between the two surfaces A layer of lubricant is kept between the two surfaces Irregularities on both the surfaces are removed The two surfaces are pressed harder Air gap is created between the two surfaces ANSWER DOWNLOAD EXAMIANS APP
Physics Which layer of the earth's atmosphere reflect back the radio waves to the earth's surface ? Mesosphere Stratosphere Exosphere Ionosphere Mesosphere Stratosphere Exosphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Small bubbles are perfectly spherical because of Gravity Viscosity Pressure Surface tension Gravity Viscosity Pressure Surface tension ANSWER DOWNLOAD EXAMIANS APP
Physics Among the following materials sound travels fastest in Air Steel Water Vacuum Air Steel Water Vacuum ANSWER DOWNLOAD EXAMIANS APP
Physics The colour of the ocean appears to be blue because the sunlight falling on it is Reflected Diffracted Refracted Scattered Reflected Diffracted Refracted Scattered ANSWER DOWNLOAD EXAMIANS APP
Physics Formula for distance is Speed x time Velocity / speed Time / speed Speed x acceleration Speed x time Velocity / speed Time / speed Speed x acceleration ANSWER DOWNLOAD EXAMIANS APP
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