Physics Which among the following waves is used for communication by artificial satellites ? Radio waves Frequency of 1016 series M. Micro waves Radio waves Frequency of 1016 series M. Micro waves ANSWER DOWNLOAD EXAMIANS APP
Physics When a person sitting on a swing stands up on the swing, the frequency of oscillation Increases Does not change Decreases Becomes infinite Increases Does not change Decreases Becomes infinite ANSWER DOWNLOAD EXAMIANS APP
Physics Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons? 1.8 km, 0.15 km 2.2 km, 0.20 km 3.3 km, 0.30 km 2.8 km, 0.25 km 1.8 km, 0.15 km 2.2 km, 0.20 km 3.3 km, 0.30 km 2.8 km, 0.25 km ANSWER DOWNLOAD EXAMIANS APP
Physics On a rainy day, small oil films on water show brilliant colours. This is due to dispersion polarization interference diffraction dispersion polarization interference diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics Convex mirrors are used as a rear view mirror in motor cycles because All of these It forms real image It forms erect (upright) image It forms smaller image as compared with object All of these It forms real image It forms erect (upright) image It forms smaller image as compared with object ANSWER DOWNLOAD EXAMIANS APP
Physics The unit of intensity of electric field is J/c N/m N/c Volt J/c N/m N/c Volt ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS