If 20% of a radiactive element decays in 10 days, then amount of original material left
If 20% of a radiactive element decays in 10 days, then amount of original material left after 30 days is…
8 years ago
Physics
During mean life of a radioactive element, the fraction that disintegrates is
During mean life of a radioactive element, the fraction that disintegrates is Options (a) e (b) 1/e (c) (e-1)/e (d)…
8 years ago
A student performs an experiment to determine the Young’s modulus of a wire
A student performs an experiment to determine the Young's modulus of a wire, exactly 2 m long, by Searle's method.…
8 years ago
If longitudinal strain for a wire is 0.03 and its poisson’s ratio is 0.5
If longitudinal strain for a wire is 0.03 and its poisson's ratio is 0.5, then its lateral strain is Options…
8 years ago
A mass of 2.0 kg is put on a flat plan attached to a vertical spring fixed on the ground
A mass of 2.0 kg is put on a flat plan attached to a vertical spring fixed on the ground…
8 years ago
A particle executing SHM with amplitude of 0.1 m. At a certain instant,
A particle executing SHM with amplitude of 0.1 m. At a certain instant, when its displacement is 0.02 m, its…
8 years ago
If a gymnast, sitting on a rotating stool with his arms outstretched, suddenly
If a gymnast, sitting on a rotating stool with his arms outstretched, suddenly lower his hands, then Options (a) The…
8 years ago
A small part of the rim of a fly wheel breaks off while it is rotating at a constant
A small part of the rim of a fly wheel breaks off while it is rotating at a constant angular…
8 years ago
A body is thrown upward from ground covers equal distances
A body is thrown upward from ground covers equal distances in 4th and 7th second. With what initial velocity the…
8 years ago
Two balls are dropped from same height at 1 second interval of time.
Two balls are dropped from same height at 1 second interval of time. The seperation between the two balls after…
8 years ago