Physics The intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes? 0.21041666666667 0.12847222222222 1.0479166666667 2.0958333333333 0.21041666666667 0.12847222222222 1.0479166666667 2.0958333333333 ANSWER DOWNLOAD EXAMIANS APP
Physics To measure the speed of an approaching car a police officer shines Light waves on it Microwaves on it Ultra high frequency waves on it Radio waves on it Light waves on it Microwaves on it Ultra high frequency waves on it Radio waves on it ANSWER DOWNLOAD EXAMIANS APP
Physics Sound following a flash of lightning is called Stoning Thunder Cloud clash Bolting Stoning Thunder Cloud clash Bolting ANSWER DOWNLOAD EXAMIANS APP
Physics Fiber optics cable used in communication, works on the principle of Refraction of light Diffuse reflection of light Total internal reflection of light Regular reflection of light Refraction of light Diffuse reflection of light Total internal reflection of light Regular reflection of light ANSWER DOWNLOAD EXAMIANS APP
Physics Stars twinkle because the intensity of light emitted by them changes with time. the refractive index of the different layers of the earth's atmosphere ch the distance of the stars from the earth changes with time. None of these the intensity of light emitted by them changes with time. the refractive index of the different layers of the earth's atmosphere ch the distance of the stars from the earth changes with time. None of these ANSWER DOWNLOAD EXAMIANS APP
Physics What is the SI unit of intensity of sound? Heartz Decibel Newton Tesla Heartz Decibel Newton Tesla ANSWER DOWNLOAD EXAMIANS APP
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