Physics The sensation of weightlessness in a spacecraft in an orbit is due to the Presence of gravity outside but not inside the spacecraft Absence of gravity outside Acceleration in the orbit which is equal to the acceleration due to gravity outside Fact that spacecraft in the orbit has no energy Presence of gravity outside but not inside the spacecraft Absence of gravity outside Acceleration in the orbit which is equal to the acceleration due to gravity outside Fact that spacecraft in the orbit has no energy ANSWER DOWNLOAD EXAMIANS APP
Physics Light from Sun reaches Earth in approximately 12 minutes 8 minutes 10 minutes 3 minutes 12 minutes 8 minutes 10 minutes 3 minutes ANSWER DOWNLOAD EXAMIANS APP
Physics A body of 4.0 kg is lying at rest. Under the action of a constant force, it gains a speed of 5 m/s. The work done by the force will be ________ 50 J 30 J 20 J 40 J 50 J 30 J 20 J 40 J ANSWER DOWNLOAD EXAMIANS APP
Physics Large astronomical telescopes always use as objective lens mirror combinations of lenses None of these lens mirror combinations of lenses None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following determines the sharpness of image in a camera ? The focal length of the lens The aperture Size of the camera The exposure time The focal length of the lens The aperture Size of the camera The exposure time ANSWER DOWNLOAD EXAMIANS APP
Physics Fibre optics work on the principle of Scattering of light Total internal absorption Total internal reflection Optical rotation Scattering of light Total internal absorption Total internal reflection Optical rotation ANSWER DOWNLOAD EXAMIANS APP
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