Questions by anonymous

0 votes

1 answer

The critical angle of a certain material medium is 43.2º. Determine the refractive index of the material.

asked Jul 8, 2021 in Physics Form 1

0 votes

1 answer

Define refractive index.

asked Jul 8, 2021 in Physics Form 1

0 votes

1 answer

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:

asked Jul 8, 2021 in Physics Form 4

0 votes

1 answer

A current-carrying conductor AB is in a magnetic field as shown in the figure below.

asked Jul 8, 2021 in Physics Form 2

0 votes

2 answers

State how polarization is minimized in a simple cell.

asked Jul 8, 2021 in Physics Form 1

0 votes

1 answer

What do you understand by polarization as used in a simple cell?

asked Jul 7, 2021 in Physics Form 1

0 votes

1 answer

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.

asked Jul 7, 2021 in Physics Form 3

0 votes

1 answer

The figure below shows a block diagram of a p-n junction diode.

asked Jul 7, 2021 in Physics Form 4

0 votes

1 answer

Arrange the following radiations in order of increasing wavelengths. Infrared, blue light, ultraviolet, radiowaves, x-rays.

asked Jul 7, 2021 in Physics Form 4

0 votes

1 answer

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.

asked Jul 7, 2021 in Physics Form 1

0 votes

1 answer

The figure below shows two waveforms representing the same wave motion.

asked Jul 7, 2021 in Physics Form 3

0 votes

1 answer

A small chain is often seen hanging at the back of a petrol carrying lorry. State and explain its significance.

asked Jul 7, 2021 in Physics Form 1

0 votes

1 answer

A steel is to be magnetized by electrical method as shown below. Identify the pole P and Q of the resulting magnet.

asked Jul 7, 2021 in Physics Form 2

0 votes

1 answer

The figure below shows a ray of light incident on the surface of one plane mirror.

asked Jul 7, 2021 in Physics Form 1

0 votes

1 answer

State two conditions under which a pinhole camera may form an image on its screen which has the same size as the object.

asked Jul 7, 2021 in Physics Form 1

0 votes

1 answer

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.

asked Jul 7, 2021 in Physics Form 4

0 votes

1 answer

Explain why the moon is said to be accelerating when revolving around the earth at constant speed

asked Jul 7, 2021 in Physics Form 3

0 votes

1 answer

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.

asked Jul 7, 2021 in Physics Form 1

0 votes

1 answer

Distinguish between elastic and inelastic collisions.

asked Jul 7, 2021 in Physics Form 3

0 votes

1 answer

Figure below shows a uniform plank of weight 20N and length 1.0m balanced by a 0.5kg mass at a distance x from the pivot point O.

asked Jul 7, 2021 in Physics Form 1

Page:

« prev
1
...
92
93
94
95
96
97
98
...
118
next »

...