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0
votes
The diagram below shows a certain defect of vision. Name the defect.
answered
Jul 8, 2021
in
Physics Form 1
rectilinear propagation of light and reflection at planes
0
votes
What do you understand by the term accommodation?
answered
Jul 8, 2021
in
Physics Form 1
rectilinear propagation of light and reflection at planes
0
votes
The critical angle of a certain material medium is 43.2º. Determine the refractive index of the material.
answered
Jul 8, 2021
in
Physics Form 1
rectilinear propagation of light and reflection at planes
0
votes
Define refractive index.
answered
Jul 8, 2021
in
Physics Form 1
rectilinear propagation of light and reflection at planes
0
votes
You are given three resistors of values 5Ω, 8Ω and 12Ω. Show in a circuit diagram how you would connect them so as to give:
answered
Jul 8, 2021
in
Physics Form 4
electricity
0
votes
A current-carrying conductor AB is in a magnetic field as shown in the figure below.
answered
Jul 8, 2021
in
Physics Form 2
magnetism
0
votes
State how polarization is minimized in a simple cell.
answered
Jul 8, 2021
in
Physics Form 1
simple cells and circuits
0
votes
What do you understand by polarization as used in a simple cell?
answered
Jul 7, 2021
in
Physics Form 1
simple cells and circuits
0
votes
A girl standing at a distance claps her hands and hears an echo from a tall building 2 seconds later. If the speed of sound in air is 340m/s, determine how far the building is.
answered
Jul 7, 2021
in
Physics Form 3
linear motion
0
votes
The figure below shows a block diagram of a p-n junction diode.
answered
Jul 7, 2021
in
Physics Form 4
electronics
0
votes
Arrange the following radiations in order of increasing wavelengths. Infrared, blue light, ultraviolet, radiowaves, x-rays.
answered
Jul 7, 2021
in
Physics Form 4
radioactivity
0
votes
An object O is placed in front of a concave mirror and on the principal axis, as shown in the figure below. Complete the light ray diagram to locate the position of the image.
answered
Jul 7, 2021
in
Physics Form 1
reflections
rectilinear propagation of light and reflection at planes
0
votes
The figure below shows two waveforms representing the same wave motion.
answered
Jul 7, 2021
in
Physics Form 3
waves
0
votes
A small chain is often seen hanging at the back of a petrol carrying lorry. State and explain its significance.
answered
Jul 7, 2021
in
Physics Form 1
electrostatic charging of objects by rubbing
0
votes
A steel is to be magnetized by electrical method as shown below. Identify the pole P and Q of the resulting magnet.
answered
Jul 7, 2021
in
Physics Form 2
magnetism
0
votes
The figure below shows a ray of light incident on the surface of one plane mirror.
answered
Jul 7, 2021
in
Physics Form 1
rectilinear propagation of light and reflection at planes
0
votes
State two conditions under which a pinhole camera may form an image on its screen which has the same size as the object.
answered
Jul 7, 2021
in
Physics Form 1
rectilinear propagation of light and reflection at planes
0
votes
A stone is whirled in a vertical circle as shown in the figure below using a string of length 40 cm. A, B, C and D are various positions of the stone in its motion. The stone makes 2 revolutions per second and has a mass of 100g.
answered
Jul 7, 2021
in
Physics Form 4
uniform circular motion
0
votes
Explain why the moon is said to be accelerating when revolving around the earth at constant speed
answered
Jul 7, 2021
in
Physics Form 3
acceleration due to gravity
0
votes
A body of mass 5 kg is ejected vertically to a height of 7.2 m from the ground when a force acts on it for 0.1s. Calculate the force used to eject the body.
answered
Jul 7, 2021
in
Physics Form 1
force
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