UTME PHYSICS PAST QUESTIONS

1. An ideal gas has a volume of 155cm3 at a pressure of 3.00 x 105Pa and at 280C. Find its volume at a pressure of 5.5 x 105Pa and temperature of 70oC a) 301cm3 b) 96.34cm3 c) 963.4cm3 d) 343cm3
Right choice – Option B

2. Three 5 ohms resistors are connected in parallel with a potential difference of 6V across the combination. The heat dissipated in
each of them in 3s is a) 21.6J b) 72J c) 648J d) 720J
Right choice – Option C

3. A particle moves due east at 4m/s the change in velocity a) 7m/s at 35oSouth of West b) 1m/s at 25South c) 5m/s at 37o South of West d)4m/s at 37o South of West
Right choice – Option

4. A herdsman  yelling out to a fellow herdsman heard the echo of his yell from a cliff 5s after. If the velocity of sound is
340m/s in air, how far is the cliff form the herdsman? a) l,700m b) 425m c) 340m d) 850m
Right choice – Option D

5. Which of the following is different from the others? a) Gamma ray b) X-ray c) Cathode ray d) Ultraviolet ray
Right choice – Option C

6. A uniform plank AB is 10m and weigh 150N, It is supported at both ends as shown below. A man weighing 850N stands at a point 3m
away from end A of the plank. Calculate the reaction R at the end of the plank. a) 100N b) 330N c) 670N d) 600N
Right choice – Option B

7. In an AC circuit, a 10mH inductor and a 10 resistor are connected in series. If the frequency of the AC line is 50Hz, what is the impedance of the combination? a) 10.48o ohm b) 100 ohm c) 109.88 ohm d) 9.8 ohm
Right choice – Option A

8. An object is weighed with a spring balance. First in air and then whilst totally immersed in water. The readings on the balance are
0.48N and 0.36N respectively. Calculate the density of the object (Density of water= 1 x 103kg/m3 a) 2.5 x 1O2kg/m3  b) 22.5 x 1o2kg/m3 c) 2.5 x 102kgm-3 d) 4.0 x 102kgm-3
Right choice – Option

9. A ray of light travels from glass into air. What is the critical angle? The refractive index of glass is 1.6 a)420 b)390 c)400 d)490
Right choice – Option B

10. A piece of stone is dropped from the top of a cliff. How far does it drop in the fifth second? g =10m/s2  a) 45m b) 35m c) 62m d)55m Right choice – Option A

11. Two balls of masses 15g and 25g are moving with velocities 24m/s and I 6m/s respectively. The balls collide on impact. Find their
velocity after collision. a) 20m/s b) 19m/s c) 22m/s d) 21m/s
Right choice – Option

12. 200g of water at 100C is contained in a vessel of negligible mass, 400g of warer at 1000C is poured into it. What is the temperature of the mixture? a) 700C b) 550C c) 850C d) 800c
Right choice – Option

13. An electric bulb is labelled 100W, 220V. What is the resistance the filament wire? a)350 ohm  ) 484 ohm c) 378 ohmQ d) 254ohm
Right choice – Option

14. The water in a swimming pool appears to be 1.5m deep. The refractive index of water Is 1.33. What is
the real depth f the water in the swimming pool? a) 1.9m b) 1.5m c) 2.1m d) 2.0m
Right choice – Option

15. At 00c, the velocity of sound in is 330m/s. Whar is the velocity of 6 sound at 1000C? a) 397mls b) 291mls c) 405m/s d) 386m/s
Right choice – Option

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