46.A force of 200 N is applied at one end of a wire of length 2 m and having area of cross-section

46.A force of 200 N is applied at one end of a wire of length 2 m and having area of cross-section 10^-2 cm² . The other end of the wire is rigidly fixed. If coefficient of linear expansion of the wire α= 8×10^-6/°C  Young’s modulus 2.2×10¹¹ N/m² and its temperature is increased by 5°C, then the increase in the tension of the wire will be

(a)       4.2 N                                                (b)   4.4 N

(c)   2.4 N                                                     (d)   8.8 N

Answer-d

(14)