Physics Coolis tube is used to produce Micro waves Gama rays Radio waves X-rays Micro waves Gama rays Radio waves X-rays ANSWER DOWNLOAD EXAMIANS APP
Physics Who gave black hole theory? Isaac Newton Albert Einstein Stephen Hawking None of these Isaac Newton Albert Einstein Stephen Hawking None of these ANSWER DOWNLOAD EXAMIANS APP
Physics A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct? Both the photons have different energies. The speeds of both the photons in vacuum are different The wavelength of X-ray photon is less than the wavelength of visible radiation photon. The frequency of X-ray photon is higher than the frequency of visible radiation photon. Both the photons have different energies. The speeds of both the photons in vacuum are different The wavelength of X-ray photon is less than the wavelength of visible radiation photon. The frequency of X-ray photon is higher than the frequency of visible radiation photon. ANSWER DOWNLOAD EXAMIANS APP
Physics The flow of thermal energy is called Current Heat Voltage Potential Current Heat Voltage Potential ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these waves can be polarized ? Sound waves in air Light waves Longitudinal waves on a string Transverse waves on a string Sound waves in air Light waves Longitudinal waves on a string Transverse waves on a string ANSWER DOWNLOAD EXAMIANS APP
Physics If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used? Concave Convex Plane Cylindrical Concave Convex Plane Cylindrical ANSWER DOWNLOAD EXAMIANS APP
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