Physics The device which converts sound energy into electrical energy is called Amplifier Microphone Speaker Transmitter Amplifier Microphone Speaker Transmitter ANSWER DOWNLOAD EXAMIANS APP
Physics Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes 3R/4 5R/4 2R R/2 3R/4 5R/4 2R R/2 ANSWER DOWNLOAD EXAMIANS APP
Physics Positive feedback is used in Amplifiers None of these Oscillators Rectifiers Amplifiers None of these Oscillators Rectifiers ANSWER DOWNLOAD EXAMIANS APP
Physics Buoyancy depends on The shaped of the body The depth to which the body is immersed The mass of the liquid displaced The mass of the body The shaped of the body The depth to which the body is immersed The mass of the liquid displaced The mass of the body ANSWER DOWNLOAD EXAMIANS APP
Physics A man standing at the top of a tower has two spheres A and B. He drops sphere A downwards and throws sphere B horizontally at the same time. Which of the following is correct ? A will reach the ground first. The question is incomplete because the masses of the spheres are not given. B will reach the ground first. Both the spheres will reach the ground simultaneously. A will reach the ground first. The question is incomplete because the masses of the spheres are not given. B will reach the ground first. Both the spheres will reach the ground simultaneously. ANSWER DOWNLOAD EXAMIANS APP
Physics Which waves cannot be transmitted through vacuum? Heat Light Sound Electromagnetic Heat Light Sound Electromagnetic ANSWER DOWNLOAD EXAMIANS APP
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