Physics The mercury and sodium street lamps light up because of : Electron emission Atomic emission Atomic absorption Electron absorption Electron emission Atomic emission Atomic absorption Electron absorption ANSWER DOWNLOAD EXAMIANS APP
Physics The instrument used to measure the speed of the wind is Altimeter Dosimeter Anemometer Chronometer Altimeter Dosimeter Anemometer Chronometer ANSWER DOWNLOAD EXAMIANS APP
Physics A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground. 0.042361111111111 Cannot be found from the given information. 0.044444444444444 0.043055555555556 0.042361111111111 Cannot be found from the given information. 0.044444444444444 0.043055555555556 ANSWER DOWNLOAD EXAMIANS APP
Physics If density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio of velocity of sound? 0.044444444444444 0.084027777777778 0.16736111111111 0.052777777777778 0.044444444444444 0.084027777777778 0.16736111111111 0.052777777777778 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 speeds of both the photons in vacuum are different The frequency of X-ray photon is higher than the frequency of visible radiation photon. Both the photons have different energies. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. The speeds of both the photons in vacuum are different The frequency of X-ray photon is higher than the frequency of visible radiation photon. Both the photons have different energies. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. ANSWER DOWNLOAD EXAMIANS APP
Physics Shock-absorbers are usually made of steel as it : Has lower elasticity Has higher elasticity Has no ductile property Is not brittle Has lower elasticity Has higher elasticity Has no ductile property Is not brittle ANSWER DOWNLOAD EXAMIANS APP
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