Upsee 2009
UPSEE - 2009 Full Paper
Section-1 Physics 1. If 3.8 × 10-6 is added to 4.2 × 10-5 giving due regard to significant figures, then the result will be : 1) 4.58 × 10-5 2) 4.6 × 10-5 3) 4.5 × 10-5 4) None of these 2. A ball is dropped from a bridge at a height of 176.4 m over a river. After 2 s, a second ball is thrown straight downwards. What should be the initial velocity of the second ball so that both hit the water simultaneously ? 1) 2.45 ms-1 2) 49 ms-1 3) 14.5 ms-1 4) 24.5 ms-1 3. Which of the following are true ? 1. A body having constant speed can have varying velocity. 2. Position time graphs for two objects with zero relative velocity are parallel. 3. The numerical ratio of velocity to speed of an object can never be more than one. 1) 1 only 2) 2 and 3 3) All 4) None of these 4. The centripetal acceleration of a body moving in a circle of radius 100 m with a time period of 2 s will be 1) 98.5 ms-2 2) 198.5 ms-2 3) 49.29 ms-2 4) 985.9 ms-2 5. How many NAND gates are used in an OR gate? 1) Four 2) Two 3) Three 4) Five
1/39
eng.edooni.com
6. A 5000 kg rocket is set for vertical firing. The exhaust speed is 800 ms-1. To give an initial upward acceleration of 20 ms-2, the amount of gas ejected per second to supply the needed thrust will be (g = 10 ms-2) 1) 127.5 kg s-1 2) 187.5 kg s-1 3) 185.5 kg s-1 4) 137.5 kg s-1 7. Induction furnace is based on the heating effect of 1) electric field 2) eddy current 3) magnetic field 4) gravitational field 8. A 5.0 μF capacitor is charged to a potential difference of 800 V and discharged through a conductor. The energy given to the conductor during the discharge is 1) 1.6 × 10-2 J 2) 3.2 J 3) 1.6 J 4) 4.2 J 9. If the electric field is given by (5i + 4j + 9 ), the electric flux through a surface of area 20 unit lying in the Y-Z plane will be 1) 100 unit 2) 80 unit 3) 180 unit 4) 20 unit 10. An aluminium (Al) rod with area of cross-section 4 × 10-6 m 2 has a current of 5 A flowing through it. Find the drift velocity
Section-1 Physics 1. If 3.8 × 10-6 is added to 4.2 × 10-5 giving due regard to significant figures, then the result will be : 1) 4.58 × 10-5 2) 4.6 × 10-5 3) 4.5 × 10-5 4) None of these 2. A ball is dropped from a bridge at a height of 176.4 m over a river. After 2 s, a second ball is thrown straight downwards. What should be the initial velocity of the second ball so that both hit the water simultaneously ? 1) 2.45 ms-1 2) 49 ms-1 3) 14.5 ms-1 4) 24.5 ms-1 3. Which of the following are true ? 1. A body having constant speed can have varying velocity. 2. Position time graphs for two objects with zero relative velocity are parallel. 3. The numerical ratio of velocity to speed of an object can never be more than one. 1) 1 only 2) 2 and 3 3) All 4) None of these 4. The centripetal acceleration of a body moving in a circle of radius 100 m with a time period of 2 s will be 1) 98.5 ms-2 2) 198.5 ms-2 3) 49.29 ms-2 4) 985.9 ms-2 5. How many NAND gates are used in an OR gate? 1) Four 2) Two 3) Three 4) Five
1/39
eng.edooni.com
6. A 5000 kg rocket is set for vertical firing. The exhaust speed is 800 ms-1. To give an initial upward acceleration of 20 ms-2, the amount of gas ejected per second to supply the needed thrust will be (g = 10 ms-2) 1) 127.5 kg s-1 2) 187.5 kg s-1 3) 185.5 kg s-1 4) 137.5 kg s-1 7. Induction furnace is based on the heating effect of 1) electric field 2) eddy current 3) magnetic field 4) gravitational field 8. A 5.0 μF capacitor is charged to a potential difference of 800 V and discharged through a conductor. The energy given to the conductor during the discharge is 1) 1.6 × 10-2 J 2) 3.2 J 3) 1.6 J 4) 4.2 J 9. If the electric field is given by (5i + 4j + 9 ), the electric flux through a surface of area 20 unit lying in the Y-Z plane will be 1) 100 unit 2) 80 unit 3) 180 unit 4) 20 unit 10. An aluminium (Al) rod with area of cross-section 4 × 10-6 m 2 has a current of 5 A flowing through it. Find the drift velocity