Model Question Paper CET Physics - WIT Solapur

93.Length of wire of potentio meter is 100 cm. and resistance is 0.005 ΩΩ Ω/cm. Abattery of 2.0 volt emf and 1.5 ΩΩinternal resistance is connected at the ends ofthe wire then the value of potential gradient is :(1) 4 x 10 -4 v/m (2) 0.005 v/m (3) 0.05 v/m (4) 0.5 v/m94.RMS velocity of a gas molecules is 300 M/s at a given temperature. RMSvelocity of a gas, of which molecular weight is double and temp. is half of that ofthe first gas, is :(1) 150 m/sec. (2) 300 m/sec. (3) 300 √2 m/sec. (4) 600 m/sec.95.Two cars are moving on two perpendicular roads towards a crossing withuniform speeds of 72 km/hr. and 36 km/hr. If first car blows horn of 280 Hzfrequency, then the frequency heard by the driver of second car when linejoining the cars 450 angle with the roads will be :(1) 280 Hz (2) 289 Hz (3) 298 Hz (4) 321 Hz96.A disc of 1/3 m radius is hanged by a point on circumference by horizontalrail. Period of oscillation is 1.42 sec. value of g by this experiment will be :(1) 10.0 m-sec -2 (2) 9.78 m-sec. -2 (3) 9.62 m-sec. -2 (4) 9.86 m-sec -297. Two masses of 5 kg. each falling from height 10 m. , by which 2 kg. water isstirred. The rise is temp. of water will be :(1) 0.12 0 (2) 0.32 0 (3) 1.2 0 (4) 2.6 098.A circular road of 1000 m radius has banking angle 45 0 , the maximum safespeed of a car having 2000 kg. mass will be, if the coefficient of friction betweentyre and road is 0.5.(1) 86/ m/sec. (2) 99 m/sec. (3) 124 m/sec. (4) 172 m/sec.