Physics Sound becomes hazardous noise pollution at decibels? Above 50 db Above 120 db Above 30 db Above 80 db Above 50 db Above 120 db Above 30 db Above 80 db ANSWER DOWNLOAD EXAMIANS APP
Physics Surface tension in a liquid is due to : Gravitational force between molecules Cohesive force between molecules Electrical force between molecules. Adhesive force betweenmolecules Gravitational force between molecules Cohesive force between molecules Electrical force between molecules. Adhesive force betweenmolecules ANSWER DOWNLOAD EXAMIANS APP
Physics Gamma rays have greatest similarity with A-rays U.V.-rays X-rays B-rays A-rays U.V.-rays X-rays B-rays ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? It expands or contracts according to its diameter Expands It expands or contracts according to its coefficient of expansion Contracts It expands or contracts according to its diameter Expands It expands or contracts according to its coefficient of expansion Contracts ANSWER DOWNLOAD EXAMIANS APP
Physics What is found in frequency modulation ? Fixed frequency Fixed dimension Change in dimension only Change in frequency and dimension Fixed frequency Fixed dimension Change in dimension only Change in frequency and dimension ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a barrel full of coal tar than to pull it because more surface area of the barrel is in contact with the road when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled the rolling friction is much less than the sliding friction the full weight of the barrel comes into play when it is pulled more surface area of the barrel is in contact with the road when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled the rolling friction is much less than the sliding friction the full weight of the barrel comes into play when it is pulled ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS