The acceleration due to gravity(g) is measured onearth's surface by using a simple pendulum. If timeperiod of the pendulum T (4.00 t 0.01) s and lengthof pendulum /then value of g upto correct significant figures, is(use T2 10.0)that5.(4.00t 0.01) m were measured,(1) (9.8 0.2) m/s2of airwhich?(2) (10.0 0.1) m/s2(3) (9.8 t 0.8) m/s2(4) (10.0 0.8) m/s2i he

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