HomeJUPEBUNIVERSITY OF LAGOS JUPEB PHYSICS PAST QUESTION AND ANSWER 2014/2015
May 27, 2019
UNIVERSITY OF LAGOS JUPEB PHYSICS PAST QUESTION AND ANSWER 2014/2015
JUPEB PHYSICS 2014/2015
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JUPEB PHYSICS 2014/2015
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Question 1 of 40
1. Question
You may assume the following constants where necessary:
Permittivity of free space-v= 8.85 xl0.12Fm-1
Permeability of free space € = 40 X 10.7 Hm-1`
Velocity of light in free space c= 3.0 x 102 ms-1
Gravitational constant G= 6.67 x 10′” Nm2kg-
Planck’s constant =6.6x 10.34 Jg
Charge on an, electron e = 1.6 x 10-9 C
Universal gas constant R = 8.31 Jmorl-1K-1
Acceleration due to gravity g = 10ms1
1. Two lamps rated 40W and 220V each are connected in series. The total power dissipated in both lamps is
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Question 2 of 40
2. Question
You may assume the following constants where necessary:
Permittivity of free space-v= 8.85 xl0.12Fm-1
Permeability of free space € = 40 X 10.7 Hm-1`
Velocity of light in free space c= 3.0 x 102 ms-1
Gravitational constant G= 6.67 x 10′” Nm2kg-
Planck’s constant =6.6x 10.34 Jg
Charge on an, electron e = 1.6 x 10-9 C
Universal gas constant R = 8.31 Jmorl-1K-1
Acceleration due to gravity g = 10ms1
Three 5 ohms resistors connected in parallel have a potential difference of 6 V applied,
cross the combination. The current in each resistor is
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Incorrect
Question 3 of 40
3. Question
You may assume the following constants where necessary:
Permittivity of free space-v= 8.85 xl0.12Fm-1
Permeability of free space € = 40 X 10.7 Hm-1`
Velocity of light in free space c= 3.0 x 102 ms-1
Gravitational constant G= 6.67 x 10′” Nm2kg-
Planck’s constant =6.6x 10.34 Jg
Charge on an, electron e = 1.6 x 10-9 C
Universal gas constant R = 8.31 Jmorl-1K-1
Acceleration due to gravity g = 10ms1
If PHCN charges 5K per KWh. What is the cost of operating for 24 hours it lamp requiring 1Aon’a200V line?
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Incorrect
Question 4 of 40
4. Question
A magnet is moved through a coil of wire. The e.m.f produced in the wire depends on
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Question 5 of 40
5. Question
In a D.C. circuit a 10 microfarad (mF) capacitor is placed in series with a 10 ohm
resistor. The total resistance of the combination is
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Question 6 of 40
6. Question
In an a.c. generator which of the following does not apply?
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Question 7 of 40
7. Question
A pole-filial difference of6V is used to produce a current of SA. for 2005 this ‘a
heating coil. The heat produced is ‘
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Question 8 of 40
8. Question
An electric charge could be transmitted through
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Question 9 of 40
9. Question
A guitar string is 75cmlong. The wavelength of its fundamental note
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Question 10 of 40
10. Question
The hardware yelling out to fellow his voice reflected by a cliff 4s I What is the velocity of sound in the cliff is 680m away?
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Question 11 of 40
11. Question
The angular dispersion of a Prism depends on
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Question 12 of 40
12. Question
The correction of myopic defects in the human eye we requires
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Question 13 of 40
13. Question
On the following which is difficult from the others?
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Question 14 of 40
14. Question
The density of 400cm of palm oil was 0.9g/cm cube before frying, if the density of the oil was
0.6g/cm cube alter frying, assuming no loss of oil due to spilling, its new volume was
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Question 15 of 40
15. Question
A 500kg car which was initially at rest traveled with an acceleration of 5m/S square, its kinetic energy after 4s was
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Question 16 of 40
16. Question
Which of the following types of waves Cannot travel through a vacuum?
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Question 17 of 40
17. Question
In what range of temperature is the expansion of water anomalous?
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Question 18 of 40
18. Question
A radioactive sample has a half-life of 4.0 min. , :What fraction of the simple is lefts after 20 min?
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Question 19 of 40
19. Question
A bullet of mass 2g moving at 400m/s strikes a wooden parcel and panel rates a distance of 5cm before coming to rest, Calculate the retarding force.
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Question 20 of 40
20. Question
An object is placed 25cm in fronts of a Convex lens and an image was formed 30cm from the lens. What is the focal length of the lens?
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Question 21 of 40
21. Question
Convert 86°F to Kelvin
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Question 22 of 40
22. Question
Chromatic aberration of a lens is caused by ,
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Question 23 of 40
23. Question
A man whose height is 2m has a blood pressure density of 8.25 x 102 kgm. Find the hydrostatic pressure difference between his head and his feet. (Take acceleration due gravity as g = 10ms2)
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Question 24 of 40
24. Question
A force of 6N horizontally on stationery mass of 2kg for 4 sees. The kinetic energy
gained by the mass is
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Question 25 of 40
25. Question
The hook of a spring balance carries an objects mass 5.0kg and the balance is suspended
vertically from the roof of a lift. Find the reading on the spring balance when the lift is
going down with an acceleration of O.1ms- 2? (Take acceleration due gravity as g = 10ms- 2)
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Question 26 of 40
26. Question
In the photo electric effect., light falling on a metal surface causes electrons to be ejected
from the surface. Which of these statement is correct?
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Question 27 of 40
27. Question
A stone at the bottom of a swimming pool appears to an observer to be 4. 5m below the
surface of the water. If the refractive index of water is 1.33 calculate the depth of the pool?
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Question 28 of 40
28. Question
A man whose height is 2m has a blood pressure density of 8.25 x 102 kgm. Find the hydrostatic pressure difference between his head and his feet. (Take acceleration due gravity as g = 10ms2)
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Incorrect
Question 29 of 40
29. Question
A force of 6N is horizontally placed on stationery mass of 2kg for 4 secs. The kinetic energy
gained by the mass is
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Question 30 of 40
30. Question
The hook of a spring balance carries an objects mass 5.0kg and the balance is suspended
vertically from the roof of a lift. Find the reading on the spring balance when the lift is
going down with an acceleration of O.1m? (Take acceleration due gravity as g = 10ms-2
Correct
Incorrect
Question 31 of 40
31. Question
The dimensions of measure, and density are given by
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Question 32 of 40
32. Question
A vector Z in the x-y plane .has magnitude 8 units and makes angles 300 with the axis what are the components of the vector along the x and y axes?
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Question 33 of 40
33. Question
Newton’s gravitational force of attraction, between two masses Ml and M2 at distance r
apart can be expressed as
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Question 34 of 40
34. Question
A force of magnitude 60N act; at 300 to the horizontal; if the ,force moves through a
horizontal’ distance of 3m, Calculate the work done by the force
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Question 35 of 40
35. Question
Which of, the following quantities is fundamental and not derived?
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Question 36 of 40
36. Question
The freezing point of a substance is 71’C; what temperature does this correspond to in
degree Fahrenheit?
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Question 37 of 40
37. Question
Calculate the. increase in volume of 100cm3 of mercury when its temperature changes from 15°C to 40°C. The volume coefficient of expansion of mercury is 0.00018°C
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Question 38 of 40
38. Question
Oxygen at a fixed mass has a volume of 0;04cm3 at atmospheric pressure of 101 kPa and temperature 7.0°C’what will its volume be if pressure is increased to 108kPa, while-as temperature is increased to 17.00C
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Question 39 of 40
39. Question
Consider 8.0g of ice initially at o-c Heated to, 10°C. If the latent heat of fusion of ice is
320KJlKg estimate the total heat supplied to the ice
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Question 40 of 40
40. Question
The relation given by heat lost per second Q=Ks (where S is the surface area of the body, TR is the temperature of its surrounding. K is a constant depending on the nature of the surface and 0 denotes the, heat lost from the body represents to