Physics Which of the following waves cannot be polarised? Ultrasonic Radio Ultra violet Infrared Ultrasonic Radio Ultra violet Infrared ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a barrel full of coal tar than to pull it because the full weight of the barrel comes into play when it is pulled the rolling friction is much less than the sliding friction coal tar is a liquid and it flows in the barrel when it is rolled more surface area of the barrel is in contact with the road when it is pulled the full weight of the barrel comes into play when it is pulled the rolling friction is much less than the sliding friction coal tar is a liquid and it flows in the barrel when it is rolled more surface area of the barrel is in contact with the road when it is pulled ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of mirror is used in the head lights of vehicles ? Plane mirror Concave mirror Convex mirror Parabolic mirror Plane mirror Concave mirror Convex mirror Parabolic mirror ANSWER DOWNLOAD EXAMIANS APP
Physics The magnifying power of an astronomical telescope can be decreased by None of these Increasing the focal length of the objective Increasing the focal length of the eyepiece Decreasing the focal length of the eyepiece None of these Increasing the focal length of the objective Increasing the focal length of the eyepiece Decreasing the focal length of the eyepiece ANSWER DOWNLOAD EXAMIANS APP
Physics Positive feedback is used in Amplifiers None of these Rectifiers Oscillators Amplifiers None of these Rectifiers Oscillators ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following occurred first ? Max Planck unveiled the Quantum Theory Guglielmo Marconi sent out the first wireless signals Wright Brothers successfully flew an aircraft Albert Einstein propounded the General Theory of Relativity Max Planck unveiled the Quantum Theory Guglielmo Marconi sent out the first wireless signals Wright Brothers successfully flew an aircraft Albert Einstein propounded the General Theory of Relativity ANSWER DOWNLOAD EXAMIANS APP
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