Physics A star appears twinkling in the sky because of Diffraction of light by atmosphere Refraction of light by atmosphere Reflection of light by atmosphere Scattering of light by atmosphere Diffraction of light by atmosphere Refraction of light by atmosphere Reflection of light by atmosphere Scattering of light by atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics When a detergent is added to pure water, its surface tension Decreases Becomes infinite Remains constant Increases Decreases Becomes infinite Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
Physics Which layer of the earth's atmosphere reflect back the radio waves to the earth's surface ? Ionosphere Stratosphere Mesosphere Exosphere Ionosphere Stratosphere Mesosphere Exosphere ANSWER DOWNLOAD EXAMIANS APP
Physics A gas thermometer is more sensitive than a liquid thermometer because a gas : Is lighter than liquid Expands more than a liquid Does not change state easily Is easy to obtain Is lighter than liquid Expands more than a liquid Does not change state easily Is easy to obtain ANSWER DOWNLOAD EXAMIANS APP
Physics In a water lifting electric pump, we convert Kinetic energy into Electrical energy Electrical energy into Potential energy Electrical energy into Kinetic energy Kinetic energy into Potential energy Kinetic energy into Electrical energy Electrical energy into Potential energy Electrical energy into Kinetic energy Kinetic energy into Potential energy ANSWER DOWNLOAD EXAMIANS APP
Physics A tank filled partially with a liquid is subjected to a uniform horizontal acceleration. Which of the following is true for the surface of liquid in the tank? The liquid surface falls down only at the center of the tank The liquid surface falls down on the direction of motion and rises up on the back side of the tank The surface of the liquid remains horizontal None The liquid surface falls down only at the center of the tank The liquid surface falls down on the direction of motion and rises up on the back side of the tank The surface of the liquid remains horizontal None ANSWER DOWNLOAD EXAMIANS APP
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