Physics To measure the speed of an approaching car a police officer shines Microwaves on it Ultra high frequency waves on it Radio waves on it Light waves on it Microwaves on it Ultra high frequency waves on it Radio waves on it Light waves on it ANSWER DOWNLOAD EXAMIANS APP
Physics For photoelectric effect to take place, the metal used as the cathode should have ________ Low resistance Low melting point Low work function High melting point Low resistance Low melting point Low work function High melting point ANSWER DOWNLOAD EXAMIANS APP
Physics On which of the following techniques photostate machine works ? Electrostatic Image—Making Thermal Image—Making Electromagnetic Image— Making Magnetic Image—Making Electrostatic Image—Making Thermal Image—Making Electromagnetic Image— Making Magnetic Image—Making ANSWER DOWNLOAD EXAMIANS APP
Physics Electromagnet is constructed with which of the following ? Steel Aluminium Soft Iron Nickel Steel Aluminium Soft Iron Nickel ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic keepers are pieces of Soft iron Cobalt Nickel Steel Soft iron Cobalt Nickel Steel ANSWER DOWNLOAD EXAMIANS APP
Physics Safety fuse wire used in domestic electrical appliances is made of metal of low Conductance Specific gravity Resistance Melting point Conductance Specific gravity Resistance Melting point ANSWER DOWNLOAD EXAMIANS APP
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