Physics Which of the following are used for accurately measuring very small time intervals ? Pulsars Atomic clocks White dwarfs Quartz clocks Pulsars Atomic clocks White dwarfs Quartz clocks ANSWER DOWNLOAD EXAMIANS APP
Physics Why do birds not have respiratory trouble at the time of flying at high altitude ? Their lungs are very large They use less oxygen They have extra air sacs They fly inactively Their lungs are very large They use less oxygen They have extra air sacs They fly inactively ANSWER DOWNLOAD EXAMIANS APP
Physics For a body moving with non-uniform velocity and uniform acceleration Velocity – Time graph is linear Velocity – Time graph is nonlinear Displacement – Time graph is linear Displacement – Time graph is non-linear Velocity – Time graph is linear Velocity – Time graph is nonlinear Displacement – Time graph is linear Displacement – Time graph is non-linear ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works on the principle of Total internal reflection Refraction Reflection Diffraction Total internal reflection Refraction Reflection Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics Why does a cannon recoil after firing ? Newton's third law of motion Newton's first law of motion Backward thrust of gases produced Conservation of energy Newton's third law of motion Newton's first law of motion Backward thrust of gases produced Conservation of energy ANSWER DOWNLOAD EXAMIANS APP
Physics For accurate scientific work, temperatures are often measured by Thermoelectric thermometers Alcohol thermometers Platinum resistance thermometers Mercury thermometers Thermoelectric thermometers Alcohol thermometers Platinum resistance thermometers Mercury thermometers ANSWER DOWNLOAD EXAMIANS APP
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