CBT physics JAMB 2016

1 Myopic defects in the human eye can be
corrected through the use of a

2 A charged particle is moving in a uniform
magnetic field. if the direction of motion of the
charged particle is parallel to the magnetic field, the
path of the charge will

3 What happens to a water pool on a day when the
humidity of the air is very low?

4 A satellite moves in a circular orbit of radius 4R
round the earth. The acceleration of the satellite in
terms of g is

5 I.Chemical II.Sound III.Electricity
Which of the above forms of energy can directly be
converted to light energy?

6 If the distance between the object and the
pinhole of a pinhole camera is reduced by half the
size of the image of the object

7 An object is placed 15cm in front of a plane
mirror. If the mirror is moved further 5cm away from
the object and the image is

8 Which of the following statements is correct
about a machine?

9 The instrument used to view stars is the

10 What is the angular magnification of a telescope
having objective and eyepiece lenses of a focal
lengths 30cm and 3cm respectively?

11 A wire of length 10m is cooled from 50 o C to
10 o C. Calculate the decrease in the length of the
wire. [c = 3 x 10^-5 K^-1 ]

12 When an athlete perspires after running, he loses
heat through

13 The rate of cooling of a heated quantity of liquid
in an enclosure depends on the

14 The heat required to raise a mass of a substance
through 1K is known as

15 A boy in a barber’s shop sits between two
parallel mirrors. The number of images observed by
him will be

16 Semiconductor is a class of solid whose
conductivity increases with an increase in

17 Which of the following statements is NOT
correct?

18 A dynamo primarily converts

19 A saturated vapour pressure of a liquid increases
when the

20 What force has to be exerted on a mass 60kg to
give it an acceleration of 10ms^-2 vertically upwards?
[g = 10ms^-2

21 A metre rule is pivoted at its mid-point with a
vertical force of 10N hanging from the distance 30cm
from the mid-point. At what distance must a 15N
force hang to balance the ruler horizontally?

22 A projectile is fired from the ground level with a
velocity of 300ms^-1 at an angle of a 30degrees to the
horizontal.
Calculate the time taken to reach the maximum
height?
[g = 10ms^-2 ]

23 A train with an initial velocity of 20ms^-1 is
subjected to a uniform deceleration of 2ms^-2 . The
time required to bring the train to a complete halt is

24 Which of the following electromagnetic waves
has the shortest wavelength?

25 A radioactive isotope has a decay constant of 10-^6 s^-1 .
Calculate its half – life?

26 Which of the following waves is both transverse
and mechanical?

27 Calculate the temperature of 6 moles of an ideal
gas at a pressure of 7.6 x 10^6 Nm^-2 with a volume of
10^-3 m^3 .
[R = 8.3jmol^-1 K^-1 ]

28 The relative density of a liquid is the ratio of the

29 What will happen to the pressure of a gas if its
temperature is reduced to -273 degree C?

30 Which of the following does Not use magnetic
effect of current to function?

31 Vapour is said to be saturated on top of an
enclosed liquid if _________

32 A pool of water appears to be 1.00m deep when
viewed vertically from above. What is the actual
depth of the pool?
[Refractive index of water = 1.33]

33 Shadows and eclipse result from the

34 Which of the following is obtained when a
magenta is mixed with green colour?

35 Which of the following instruments can be used
to measure current in an a.c circuit?

36 Which of the following statements about wave
motion is correct?

37 A satellite revolving around the earth is kept on
its orbit by

38 A manometer is an instrument used for
measuring

39 A body which weighs 50N in air displaces 3.7kg
of water when partially immersed in water. Calculate
the upthrust on the body?

40 The impulse of a force is deduced from Newton’s
second law as

41 Boiling occurs when the vapour pressure of a
liquid is

42 If the magnification of a virtual image formed by
an object 10cm from a convex less is 3, then the focal
length of the lens is

43 An electron in a hydrogen atom makes a
transition from the ground level to the third level. If
the energy at the ground level, calculate the energy at
the third level.
[h = 6.6 x 10^-34 Js; f = 10^15 Hz]

In the diagram above, which of the following
velocity-time graphs shows uniform acceleration of a
body from rest?

45. In the diagram above, the neutral point is at

46. From the diagram above, the measuring accuracy of
the micrometer screw gauge is

47. In the diagram above, the direction of the force
between N and S in the magnetic field is

48 Which of the following statements is Not true
about atoms?

49 The frequency of beats produced when two
tunning forks of frequencies 258Hz and 270Hz are
sounded close to each other

50 Calculate the inductance of a coil of resistance
30 connected to a 100V a.c source if the coil draws
an r.m.s current of 2A