Physics What is the minimum velocity required for a rocket to overcome earth's gravity and travel into space? 18 km/sec 35 km/sec 21 km/sec 11.2 km/sec 18 km/sec 35 km/sec 21 km/sec 11.2 km/sec ANSWER DOWNLOAD EXAMIANS APP
Physics Radioactive elements can be traced out in living cell through a technique called Centrifugation Auto radiography All listed here Chromatography Centrifugation Auto radiography All listed here Chromatography ANSWER DOWNLOAD EXAMIANS APP
Physics The spring constant of a spring depends on its Length and its diameter Length only Thickness, its diameter and its material Material only Length and its diameter Length only Thickness, its diameter and its material Material only 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. Cannot be found from the given information. 0.043055555555556 0.042361111111111 0.044444444444444 Cannot be found from the given information. 0.043055555555556 0.042361111111111 0.044444444444444 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 What type of simple machine is an axe? Wedge Both A & B The screw Lever Wedge Both A & B The screw Lever ANSWER DOWNLOAD EXAMIANS APP
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