Physics The threshold frequency is the frequency below which : Photo current increases with voltage Photo current is constant Photo current decreases with voltage Photo electric emission is not possible Photo current increases with voltage Photo current is constant Photo current decreases with voltage Photo electric emission is not possible ANSWER DOWNLOAD EXAMIANS APP
Physics A bird sitting on a high tension electric wire does not get electrocuted because It has high resistance Its feet are good insulators The body is earthed It does not form a closed path for the flow of current It has high resistance Its feet are good insulators The body is earthed It does not form a closed path for the flow of current ANSWER DOWNLOAD EXAMIANS APP
Physics Positive feedback is used in None of these Oscillators Rectifiers Amplifiers None of these Oscillators Rectifiers Amplifiers ANSWER DOWNLOAD EXAMIANS APP
Physics During the motion of a projectile fired from the earth surface, ________ Vertical component of its velocity remains constant Its momentum remains constant Horizontal component of its velocity remains constant Its kinetic energy remains constant Vertical component of its velocity remains constant Its momentum remains constant Horizontal component of its velocity remains constant Its kinetic energy remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of mirror is used in the head lights of vehicles ? Convex mirror Plane mirror Parabolic mirror Concave mirror Convex mirror Plane mirror Parabolic mirror Concave mirror ANSWER DOWNLOAD EXAMIANS APP
Physics Absolute Zero is defined as At which water boils at 298K The temperature at which all molecular motion ceases At which the volume becomes zero At which liquid Helium boils At which water boils at 298K The temperature at which all molecular motion ceases At which the volume becomes zero At which liquid Helium boils ANSWER DOWNLOAD EXAMIANS APP
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