Physics Echo is heard due to Reflection Interference Scattering Refraction Reflection Interference Scattering Refraction ANSWER DOWNLOAD EXAMIANS APP
Physics The magnifying power of an astronomical telescope can be decreased by Decreasing the focal length of the eyepiece Increasing the focal length of the eyepiece None of these Increasing the focal length of the objective Decreasing the focal length of the eyepiece Increasing the focal length of the eyepiece None of these Increasing the focal length of the objective ANSWER DOWNLOAD EXAMIANS APP
Physics The group of solar cells joined together in a definite pattern is called a Battery Solar cooker Solar heater Solar cell panel Battery Solar cooker Solar heater Solar cell panel ANSWER DOWNLOAD EXAMIANS APP
Physics Beta rays emitted by a radioactive material are Charged particles emitted by nucleus Electromagnetic radiations Neutral particles The electrons orbiting around the nucleus Charged particles emitted by nucleus Electromagnetic radiations Neutral particles The electrons orbiting around the nucleus ANSWER DOWNLOAD EXAMIANS APP
Physics Carbon Arc lamps are commonly used in Photography Vehicles Domestic lighting Cinema projectors Photography Vehicles Domestic lighting Cinema projectors ANSWER DOWNLOAD EXAMIANS APP
Physics What is the reason for formation of Mirage in desert? Reflection of light Total internal reflection of light Refraction of light Both Refraction and Total internal reflection of light Reflection of light Total internal reflection of light Refraction of light Both Refraction and Total internal reflection of light ANSWER DOWNLOAD EXAMIANS APP
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