Physics Ultrasound devices operate with minimum frequency from 60 kHz 45 kHz 20kHz 35 kHz 60 kHz 45 kHz 20kHz 35 kHz ANSWER DOWNLOAD EXAMIANS APP
Physics The sky appears blue because The atmosphere scatters blue colour more than the others All colours interfere to produce blue In white light, the blue component dominates It is actually blue The atmosphere scatters blue colour more than the others All colours interfere to produce blue In white light, the blue component dominates It is actually blue ANSWER DOWNLOAD EXAMIANS APP
Physics Bats can sense obstacles because they produce Supersonic sound waves Ultrasonic sound waves Micro sound waves Infrasonic sound waves Supersonic sound waves Ultrasonic sound waves Micro sound waves Infrasonic sound waves ANSWER DOWNLOAD EXAMIANS APP
Physics Shock-absorbers are usually made of steel as it : Has higher elasticity Is not brittle Has no ductile property Has lower elasticity Has higher elasticity Is not brittle Has no ductile property Has lower elasticity ANSWER DOWNLOAD EXAMIANS APP
Physics Why does bleeding occur through the nose in high mountainous regions ? The pressure at high altitudes is greater than that on the plains The pressure of blood in capillaries is greater than the outside pressure The blood pressure of a person increases at high altitudes The blood pressure fluctuates and finally decreases drastically The pressure at high altitudes is greater than that on the plains The pressure of blood in capillaries is greater than the outside pressure The blood pressure of a person increases at high altitudes The blood pressure fluctuates and finally decreases drastically ANSWER DOWNLOAD EXAMIANS APP
Physics Who discovered X-ray Wilhelm Rontgen Pierre Curie Marie Curie Ernest Rutherford Wilhelm Rontgen Pierre Curie Marie Curie Ernest Rutherford ANSWER DOWNLOAD EXAMIANS APP
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