Physics Ultrasound devices operate with minimum frequency from 35 kHz 20kHz 60 kHz 45 kHz 35 kHz 20kHz 60 kHz 45 kHz ANSWER DOWNLOAD EXAMIANS APP
Physics Stars twinkle because the distance of the stars from the earth changes with time. the intensity of light emitted by them changes with time. None of these the refractive index of the different layers of the earth's atmosphere ch the distance of the stars from the earth changes with time. the intensity of light emitted by them changes with time. None of these the refractive index of the different layers of the earth's atmosphere ch ANSWER DOWNLOAD EXAMIANS APP
Physics Nuclear reactors used to produce electricity are based on Nuclear fusion Nuclear fission Superconductivity Cold fusion Nuclear fusion Nuclear fission Superconductivity Cold fusion ANSWER DOWNLOAD EXAMIANS APP
Physics If an object moves with constant velocity, It must have constant direction It must have constant speed It must have constant speed in constant direction None of these It must have constant direction It must have constant speed It must have constant speed in constant direction None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Rainbows are produced when sunlight : Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction and internal reflection. None of the given statements is correct. Incident on raindrops hanging in the atmosphere is dispresed after suffering reflection. Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction and internal reflection. None of the given statements is correct. Incident on raindrops hanging in the atmosphere is dispresed after suffering reflection. Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction ANSWER DOWNLOAD EXAMIANS APP
Physics A fresh egg when placed in salt water will Sink but will not go to the bottom Float Burst Sink and go to the bottom Sink but will not go to the bottom Float Burst Sink and go to the bottom ANSWER DOWNLOAD EXAMIANS APP