Physics A ball is thrown vertically upward from the ground. It crosses a point at the height of 25 m twice at an interval of 4 seconds. The ball was thrown with the velocity of 36 m/s 18 m/s 25 m/s 30 m/s 36 m/s 18 m/s 25 m/s 30 m/s ANSWER DOWNLOAD EXAMIANS APP
Physics Who was the first scientist to discover Electrons? Albert Einstein J.J Thompson J.C. Bose Isaac Newton Albert Einstein J.J Thompson J.C. Bose Isaac Newton 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 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. The speeds of both the photons in vacuum are different ANSWER DOWNLOAD EXAMIANS APP
Physics What is the minimum escape velocity of rocket to be launched into space ? 5 Km/Sec. 6 Km/Sec. 15 Km/Sec. 11 Km/Sec. 5 Km/Sec. 6 Km/Sec. 15 Km/Sec. 11 Km/Sec. ANSWER DOWNLOAD EXAMIANS APP
Physics If a body moves with a constant speed in a circle No force acts on it No work is done on it No acceleration is produced in it Its velocity remains constant No force acts on it No work is done on it No acceleration is produced in it Its velocity remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics Transformer is a device to convert C. to A.C. Low voltage A.C. into high voltage A.C. Low voltage D.C. into high voltage D.C. Mechanical energy into Electrical energy C. to A.C. Low voltage A.C. into high voltage A.C. Low voltage D.C. into high voltage D.C. Mechanical energy into Electrical energy ANSWER DOWNLOAD EXAMIANS APP
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