Physics Which layer of the earth's atmosphere reflect back the radio waves to the earth's surface ? Mesosphere Stratosphere Exosphere Ionosphere Mesosphere Stratosphere Exosphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
Physics The magnifying power of an astronomical telescope can be decreased by Increasing the focal length of the objective None of these Decreasing the focal length of the eyepiece Increasing the focal length of the eyepiece Increasing the focal length of the objective None of these Decreasing the focal length of the eyepiece Increasing the focal length of the eyepiece ANSWER DOWNLOAD EXAMIANS APP
Physics A boy is swinging a ball attached to a string in a horizontal circle. If the string snaps It will fall down at the same place where the string breaks The ball will travel towards the center of the circle and fall down None of these It will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down It will fall down at the same place where the string breaks The ball will travel towards the center of the circle and fall down None of these It will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down ANSWER DOWNLOAD EXAMIANS APP
Physics Optic fibres are used in : Endoscopy CAT scans Ultrasound scans X-ray photos Endoscopy CAT scans Ultrasound scans X-ray photos ANSWER DOWNLOAD EXAMIANS APP
Physics Who was the first scientist to discover Electrons? Isaac Newton J.J Thompson Albert Einstein J.C. Bose Isaac Newton J.J Thompson Albert Einstein J.C. Bose ANSWER DOWNLOAD EXAMIANS APP
Physics A gradual increase in loudness is known as Timbre Crescendo Fortissimo None of these Timbre Crescendo Fortissimo None of these ANSWER DOWNLOAD EXAMIANS APP
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