Grade 12Thermal Physics
A smooth and bottomless tunnel is dug through the centre of earth .A particle is released from the surface of earth into the tunnel. Time to reach at a distance R/2 from the other end of tunnel is (appoximately) equal to (where R= radius of earth) (1) 56.4 minutes (3) 42.3 minute(2) 7.05 minutes (4) 28.2 minute
A smooth and bottomless tunnel is dug through the centre of earth .A particle is released from the surface of earth into the tunnel. Time to reach at a distance R/2 from the other end of tunnel is (appoximately) equal to (where R= radius of earth)
(1) 56.4 minutes (3) 42.3 minute
(2) 7.05 minutes (4) 28.2 minute
