Physics A vacuum cleaner works on the principle of pressure difference. On the moon it will Work with reduced efficiency Not work at all Work with increased efficiency Work as efficiently as on the earth Work with reduced efficiency Not work at all Work with increased efficiency Work as efficiently as on the earth ANSWER DOWNLOAD EXAMIANS APP
Physics In general, which is the cause of a land breeze? Heat Temperature Pressure None of these Heat Temperature Pressure None of these ANSWER DOWNLOAD EXAMIANS APP
Physics If an object moves with constant velocity, None of these It must have constant speed in constant direction It must have constant direction It must have constant speed None of these It must have constant speed in constant direction It must have constant direction It must have constant speed ANSWER DOWNLOAD EXAMIANS APP
Physics A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is Of higher pitch when train departs Of higher intensity when train arrives Of higher pitch when train arrives The same in both cases in all respects Of higher pitch when train departs Of higher intensity when train arrives Of higher pitch when train arrives The same in both cases in all respects 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? The wavelength of X-ray photon is less than the wavelength of visible radiation photon. Both the photons have different energies. The frequency of X-ray photon is higher than the frequency of visible radiation photon. 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. Both the photons have different energies. The frequency of X-ray photon is higher than the frequency of visible radiation photon. The speeds of both the photons in vacuum are different ANSWER DOWNLOAD EXAMIANS APP
Physics In hydro power station, the motion produced in turbines is due to Burning of coal Flow of water Production of steam Burning of diesel Burning of coal Flow of water Production of steam Burning of diesel ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS