Physics Acceptable noise level for human ear > 85 db None of these = 85 db < 85 db > 85 db None of these = 85 db < 85 db ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a barrel full of coal tar than to pull it because the full weight of the barrel comes into play when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled more surface area of the barrel is in contact with the road when it is pulled the rolling friction is much less than the sliding friction the full weight of the barrel comes into play when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled more surface area of the barrel is in contact with the road when it is pulled the rolling friction is much less than the sliding friction ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following wavelengths of light is most effective in photosynthesis ? Yellow Green Blue Orange Yellow Green Blue Orange ANSWER DOWNLOAD EXAMIANS APP
Physics Contact force is another name for ________ Electrostatic force Muscular force Friction Magnetic force Electrostatic force Muscular force Friction Magnetic force ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following are used for accurately measuring very small time intervals ? Quartz clocks Pulsars Atomic clocks White dwarfs Quartz clocks Pulsars Atomic clocks White dwarfs ANSWER DOWNLOAD EXAMIANS APP
Physics The shape of our milky way galaxy is None of these Elliptical Spiral Circular None of these Elliptical Spiral Circular ANSWER DOWNLOAD EXAMIANS APP
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