Physics To resolve an object in an electron microscope, None of these The wavelength of the electrons must be close to the diameter of the object Both A & B The wavelength of the electrons must be greater than the diameter of the object. None of these The wavelength of the electrons must be close to the diameter of the object Both A & B The wavelength of the electrons must be greater than the diameter of the object. ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is an example of continous emission spectrum? Spectrum of a water Spectrum of an oil frame None Both Spectrum of a water Spectrum of an oil frame None Both ANSWER DOWNLOAD EXAMIANS APP
Physics The atmospheric layer reflecting radio waves is called Mesosphere Ionosphere Ozonosphere Stratosphere Mesosphere Ionosphere Ozonosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Physics For a ray of light to suffer total internal reflection it has to pass from : Glass to water Air to water Water to glass Air to glass Glass to water Air to water Water to glass Air to glass ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is optical illusion? Rainbow Mirage Halo Earthshine Rainbow Mirage Halo Earthshine ANSWER DOWNLOAD EXAMIANS APP