6. For an SHM oscillator, the amplitude is 5 cm and its time period is 4 seconds. The minimum time taken by the particle to pass between points which are at distances 4 cm and 3 cm from the centre of oscillation on the same side of it will be (1) 0.13 second (3) 0.26 second (2) 0.18 second (4) 0.35 second 7. A short dipole of dipole moment P is placed along x-axis at a distance d from a long wire having uniform linear charge density +1 (wire is along y-axis) as shown. Find minimum work required to align this dipole along y axis (so that dipole moment P is along +y direction) 2 + + d -9 +q (1) (3) P P2 (2) P (4) 2sod 8. A dielectric slab of dielectric constants k is slowly inserted inside the parallel plate capacitor having plate area A and separation between plates d as shown in figure. If dimensions of dielectric slab is same as plates of capacitor and capacitor is connected through the battery, then work done by agent will be (C = & A/d) (1) CE (k+1) (3)-CE(k-1) d (2) CE(k-1) (4)-CE (k-1) 9. A multi range current ammeter can be constructed by using a galvanometer circuit as shown in figure. We want a current meter that can measure 10 mA, 100 mA and 1A using a galvanometer of resistance 102 and that produces maximum deflection for current 1 mA. Value of S + S2 + 53 in ohms is (1) 110 (3) 100 999 - S ww G ww ww S S 10 mA 1 Amp 100 mA (2) 100 (4) 11