Physics In a railway track, two rails are joined end to end with a gap in between them because Accidents due to expansion in summer can be avoided Air-gaps are necessary for bearing the weight of running train Steel can be saved Accidents due to contraction in winter can be avoided Accidents due to expansion in summer can be avoided Air-gaps are necessary for bearing the weight of running train Steel can be saved Accidents due to contraction in winter can be avoided ANSWER DOWNLOAD EXAMIANS APP
Physics Find the acceleration (in m/s2) of a body which accelerates from 25 m/s to 30 m/s in 10 seconds 0.5 1 5.5 11 0.5 1 5.5 11 ANSWER DOWNLOAD EXAMIANS APP
Physics X-rays region lies between Visible and infra-red region Gamma-rays and ultraviolet region Ultraviolet and visible region Short radio waves and long radio waves Visible and infra-red region Gamma-rays and ultraviolet region Ultraviolet and visible region Short radio waves and long radio waves ANSWER DOWNLOAD EXAMIANS APP
Physics A copper wire of radius r and length l has a resistance of R. A second copper wire with radius 2r and length l is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be 4 R/5 R/5 5 R/4 5 R 4 R/5 R/5 5 R/4 5 R ANSWER DOWNLOAD EXAMIANS APP
Physics When a running car stops suddenly, the passengers tends to lean forward because of: Centrifugal force Gravitational force Inertia of motion Inertia of rest Centrifugal force Gravitational force Inertia of motion Inertia of rest ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is preferred for accelerating electrons? Cyclotron Betatron Van de Graft Generator Synchrotron Cyclotron Betatron Van de Graft Generator Synchrotron ANSWER DOWNLOAD EXAMIANS APP
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