Question Library — KalmiPrep by Kalmitech

Physics UTME / JAMB 1979 Current Electricity & Electric Circuits

Radio carrier waves are generated by causing electrons to oscillate rapidly in

A

a microphone

B

a television camera

C

an antenna

D

coaxial cables

E

a transmitter

medium Difficulty

Physics UTME / JAMB 1979 Gas Laws & Heat Transfer

Which of the following statements is correct? Silvered walls of a vacuum flask are used to prevent

A

heat loss due to conduction

B

vacuum loss

C

heat entry into the inner flask due to convection

D

heat loss due to radiation

E

heat loss due to convection

medium Difficulty

Physics UTME / JAMB 1979 Linear Motion, Projectiles & Kinematics

fig 12 shows the velocity time graph of a car which starts from rest and is accelerated uniformly at the rate of 3m sec-2 for 5 seconds. It attains a velocity which is maintained for a minute, The car is then brought to rest by a uniform retardation after another 3 seconds. calculate the total distance covered

A

900m

B

1920m

C

960m

D

860m

E

12/7A

medium Difficulty

Physics UTME / JAMB 1979 Lenses & Optical Instruments

A concave lens of focal length 20cm form an image 1/2 the size of the object. The object distance is

A

100cm

B

\( \frac{100}{q} \)

C

60cm

D

\( \frac{60}{7} \)

E

None of the above

medium Difficulty

Physics UTME / JAMB 1979 Lenses & Optical Instruments

The diagram shows lens arrangement in

Attached Figure / Diagram

A

A Compound Microscope

B

astronomical telescope

C

binocular

D

periscope

E

projection lantern

medium Difficulty

Physics UTME / JAMB 1979 Current Electricity & Electric Circuits

In a given circuit, the cell P has an emf 1.5V and an unknown internal resistance while cell Q has an emf 2.0V and an internal resistance of 1 ohm if the ammeter reads 50m A, Then r is equal to

Attached Figure / Diagram

A

0.5 ohm

B

0.62 ohm

C

1.0 ohm

D

2.0 ohm

E

3.0 ohm

medium Difficulty

Physics UTME / JAMB 1979 Elasticity, Density, Pressure & Fluids

An air column 10cm in length is trapped into the sea end of a capillary tube by a 15cm column of mercury with the tube held vertically as shown above. On inverting the tube the air column becomes 15cm long. The atmospheric pressure during the experiment is

Attached Figure / Diagram

A

90cm

B

76cm

C

75cm

D

60cm

E

50cm

medium Difficulty

Physics UTME / JAMB 1979 Current Electricity & Electric Circuits

A uniform bean HK of length 10m and weighing 200N is supported at both ends as shown above. A man weighing 1000N stands at a point P on the beam. If the reactions at point H an K respectively are 800N and 400N, Then the distance HP is

Attached Figure / Diagram

A

4m

B

3.5m

C

3m

D

\( 6 \frac{2}{3} \)m

E

7m

medium Difficulty

Physics UTME / JAMB 1979 Magnetism, Electromagnetism & AC Circuits

Fig 8 shows a current I flowing in a copper wire situated in a magnetic field existing between the pole-pieces of a horse-shoe magnet. Which of the following statements is correct?

Attached Figure / Diagram

A

The wire will experience a force in the direction into the paper

B

The wire will experience a force in the direction out of the paper

C

The wire will vibrate in a direction into and out of the paper

D

the wire will move in the direction of the field i.e toward the s-pole

E

the wire will not move because it is made of copper which is non magnetic

medium Difficulty

Physics UTME / JAMB 1979 Waves, Sound & Vibrations

For the wave motion represented above The wavelength is given by

Attached Figure / Diagram

A

p

B

q

C

r

D

s

E

t

medium Difficulty

Physics UTME / JAMB 1979 Current Electricity & Electric Circuits

An electrical circuit is connected up as shown above, which of the following is correct about the value of current flowing through the 1 ohm resistance?

Attached Figure / Diagram

A

12/13A

B

13/12A

C

1/3A

D

3A

E

12/7A

medium Difficulty

Physics UTME / JAMB 1979 Linear Motion, Projectiles & Kinematics

fig 12 shows the velocity time graph of a car which starts from rest and is accelerated uniformly at the rate of 3m sec-2 for 5 seconds. It attains a velocity which is maintained for a minute, The car is then brought to rest by a uniform retardation after another 3 seconds. calculate the total distance covered

Attached Figure / Diagram

A

900m

B

1920m

C

960m

D

860m

medium Difficulty

Chemistry UTME / JAMB 1979 Organic Chemistry I: Hydrocarbons & Crude Oil

An organic compound X has the following properties: I. It is not miscible with water. ll. lt has boiling point of 77oC lll. lt has a sweet odour lV. lt is insoluble in sodium hydrogen carbonate solution . V lt does not decolourize bromine water X is therefore

A

methane

B

ethanoic acid

C

ethene

D

ethyl ethanoate

E

carbon tetrachloride

medium Difficulty

Chemistry UTME / JAMB 1979 Organic Chemistry I: Hydrocarbons & Crude Oil

Which are the correct IUPAC names for H-CO\(_2\)CH\(_3\) and CH \(\equiv\) CH

A

Methyl methanoate and ethene

B

Metanoic acid and ethyne

C

Ethyl methanoate and ethyne

D

Methyl methanoate and ethyne

E

Ethanoic acid and ethene

medium Difficulty

Chemistry UTME / JAMB 1979 Organic Chemistry II: Functional Groups, Polymers & Biomolecules

Which of the following substances are all made by the process of polymerization?

A

Nylon and soap

B

Ethanoic acid margarine and ethanol

C

Nylon and artificial rubber

D

Soap and butane

E

Margarine and nylon

medium Difficulty