17. Moment of inertia (M.I) of four bodies, having same mass and radius, and reported as:
I1 = M.I. of thin circular ring about its diameter

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18. 12 = M.I. of circular disc about an axis perpendicular to disc and going through the centre, 13 = M.I. of solid cylinder about its axis and 14 = M.I. of solid sphere about its diameter. (a) 1+3 <2+4 (b) 1=2=3 <4 (c) 1 = 2 = 13 > 14 (d) |+1=3+14 =+2 5 n mole of perfect gas undergoes a cyclic process ABCA (see figure) consisting of the following processes. AB B C CA : Isothermal expansion at temperature T so that the P volume is doubled from V to V2 and Pressure changes P from P to P2. : Isobaric compression at pressure P to initial volume V1. : Isobaric change leading to change of pressure from P2 P2 to P1. Total work done in the complete cycle ABCA is: (a) nRT In2+- 12+121 ) (b) nRT (In2-13) (c) 0 t B C V V2=2V1 (d) nRTIn2 19. If y, K and n are the value of Young's modulus, bulk modulus of rigidity of any material respectively. Choose (a) Y=- 9 2n+3K -N/m (b) K= Yn 9n-3Y -N/m (c) n=- 3YK 9K+Y 9Kn -N/m (d) Y=- -N/m 3K-n 18. 12 = M.I. of circular disc about an axis perpendicular to disc and going through the centre, 13 = M.I. of solid cylinder about its axis and 14 = M.I. of solid sphere about its diameter. (a) 1+3 <2+4 (b) 1=2=3 <4 (c) 1 = 2 = 13 > 14 (d) |+1=3+14 =+2 5 n mole of perfect gas undergoes a cyclic process ABCA (see figure) consisting of the following processes. AB B C CA : Isothermal expansion at temperature T so that the P volume is doubled from V to V2 and Pressure changes P from P to P2. : Isobaric compression at pressure P to initial volume V1. : Isobaric change leading to change of pressure from P2 P2 to P1. Total work done in the complete cycle ABCA is: (a) nRT In2+- 12+121 ) (b) nRT (In2-13) (c) 0 t B C V V2=2V1 (d) nRTIn2 19. If y, K and n are the value of Young's modulus, bulk modulus of rigidity of any material respectively. Choose (a) Y=- 9 2n+3K -N/m (b) K= Yn 9n-3Y -N/m (c) n=- 3YK 9K+Y 9Kn -N/m (d) Y=- -N/m 3K-n