Login
Remember
Register
EasyElimu Questions and Answers
Questions
Unanswered
Tags
Users
Ask a Question
User anonymous
Wall
Recent activity
All questions
All answers
Ask a Question
Questions by anonymous
0
votes
1
answer
State one difference between the deflection systems of a cathode ray tube and the television tube.
asked
Jun 21, 2021
in
Physics Form 4
cathode rays
0
votes
1
answer
Name the three components of the electron gun in a cathode ray tube.
asked
Jun 21, 2021
in
Physics Form 4
cathode rays
0
votes
1
answer
The half life of a certain radioactive substance is 24 days. Given that the initial sample of the substance has a mass of 64 g, determine the mass which is left after 72 days.
asked
Jun 21, 2021
in
Physics Form 4
radioactivity
0
votes
1
answer
Arrange the following electromagnetic waves in the order of decreasing frequency: Microwaves; Gamma rays; Radiowaves; X-rays.
asked
Jun 21, 2021
in
Physics Form 4
radioactivity
0
votes
1
answer
Figure 5 shows a radioactive element placed in an evacuated glass chamber. The element produces alpha, beta and gamma emissions.
asked
Jun 21, 2021
in
Physics Form 4
radioactivity
0
votes
1
answer
The following is a nuclear reaction equation: 63Li+10n →31H +xyP Determine the values of x and y.
asked
Jun 21, 2021
in
Physics Form 4
radioactivity
0
votes
1
answer
State two uses of radioactivity in medicine.
asked
Jun 21, 2021
in
Physics Form 4
radioactivity
0
votes
1
answer
An object of height 10 cm is placed 30 cm from a converging lens of focal length 18 cm.
asked
Jun 21, 2021
in
Physics Form 2
reflections
curved surfaces
0
votes
1
answer
An object is placed 8cm from a concave mirror whose radius of curvature is 20cm. Determine the position of the image.
asked
Jun 21, 2021
in
Physics Form 2
reflections
curved surfaces
0
votes
1
answer
Describe how the focal length of a concave mirror can be determined using a screen and a metre rule.
asked
Jun 21, 2021
in
Physics Form 2
reflections
curved surfaces
0
votes
1
answer
A consumer has the following appliances in the house:
asked
Jun 21, 2021
in
Physics Form 4
electronics
0
votes
1
answer
An electric cooker is rated 2.5 kW, 250 V. State the meaning of these values
asked
Jun 21, 2021
in
Physics Form 4
electronics
0
votes
1
answer
State two ways of minimising power losses during the transmission of electric power.
asked
Jun 21, 2021
in
Physics Form 1
electrostatics
electronics
0
votes
1
answer
Figure 4 shows circular water waves incident on a plane reflector placed at an angle to the path of the waves.
asked
Jun 21, 2021
in
Physics Form 3
waves
0
votes
1
answer
State the purpose of a fuse in an electrical circuit.
asked
Jun 21, 2021
in
Physics Form 1
cells
electrostatics
0
votes
1
answer
Explain how x-rays are produced in the x-ray tube.
asked
Jun 21, 2021
in
Physics Form 4
x rays
0
votes
1
answer
A broadcasting station produces radio waves of wavelength 800 m. Determine their frequency (speed of air is 3 x 108ms-1
asked
Jun 21, 2021
in
Physics Form 2
waves
0
votes
1
answer
Draw a diagram to show a p-n junction connected in the reverse bias mode.
asked
Jun 21, 2021
in
Physics Form 4
electronics
0
votes
1
answer
When iron filings are sprinkled onto a bar magnet, it is observed that there are more iron filings at the ends than in the middle. Explain this observation.
asked
Jun 21, 2021
in
Physics Form 2
magnetism
0
votes
1
answer
Figure 3 shows an annular ring.
asked
Jun 21, 2021
in
Physics Form 1
electrostatics
Page:
« prev
1
...
109
110
111
112
113
114
115
...
118
next »
Welcome to EasyElimu Questions and Answers, where you can ask questions and receive answers from other members of the community.
Categories
All categories
Mathematics
(632)
English
(287)
Kiswahili
(560)
Chemistry
(663)
Physics
(604)
Biology
(659)
Geography
(537)
History
(568)
CRE
(365)
IRE
(53)
Agriculture
(519)
Business Studies
(379)
Computer Studies
(20)
Home Science
(60)
General Questions
(433)
6.4k
questions
9.6k
answers
6
comments
590
users
...