Physics To resolve an object in an electron microscope, The wavelength of the electrons must be greater than the diameter of the object. Both A & B None of these The wavelength of the electrons must be close to the diameter of the object The wavelength of the electrons must be greater than the diameter of the object. Both A & B None of these The wavelength of the electrons must be close to the diameter of the object ANSWER DOWNLOAD EXAMIANS APP
Physics Sound of frequency below 20 Hz is called ultrasonic infrasonic audio sounds supersonics ultrasonic infrasonic audio sounds supersonics ANSWER DOWNLOAD EXAMIANS APP
Physics The device which converts sound energy into electrical energy is called Transmitter Speaker Amplifier Microphone Transmitter Speaker Amplifier Microphone ANSWER DOWNLOAD EXAMIANS APP
Physics The ''Choke' used with a tube light is basically An inductor A capacitor A resistor A transformer An inductor A capacitor A resistor A transformer ANSWER DOWNLOAD EXAMIANS APP
Physics On a stationary sail boat, air is blown from a fan attached to the boat. The boat moves in opposite direction in which the air is blown does not move spins around moves in the same direction in which air blows moves in opposite direction in which the air is blown does not move spins around moves in the same direction in which air blows ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the waves have the longest wavelength Blue Violet Red Green Blue Violet Red Green ANSWER DOWNLOAD EXAMIANS APP
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