- An upright object is placed in front of a converging (convex lens). An image magnified 3 times was formed on the screen. If the distance...(Solved)
An upright object is placed in front of a converging (convex lens). An image magnified 3 times was formed on the screen. If the distance between the object and the screen was 80cm, determine:-
i) The object distance.
ii) The focal length of the lens.
Date posted: November 4, 2019. Answers (1)
- State what happens to the wavelength of a water wave when it moves from shallow to deep water.(Solved)
State what happens to the wavelength of a water wave when it moves from shallow to deep water.
Date posted: November 4, 2019. Answers (1)
- Draw a circuit diagram showing how a single diode can be used in half wave rectification.(Solved)
Draw a circuit diagram showing how a single diode can be used in half wave rectification.
Date posted: November 4, 2019. Answers (1)
- The figure below shows a ray of light transversing from a glass medium to air.
Determine the refractive index of glass.(Solved)
The figure below shows a ray of light transversing from a glass medium to air.

Determine the refractive index of glass.
Date posted: November 4, 2019. Answers (1)
- Illustrate by means of diagram what is meant by diffraction.(Solved)
Illustrate by means of diagram what is meant by diffraction.
Date posted: November 4, 2019. Answers (1)
- Figure below shows resistors connected in an electric circuit.
Determine the reading of the ammeter.(Solved)
Figure below shows resistors connected in an electric circuit.
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Determine the reading of the ammeter.
Date posted: November 4, 2019. Answers (1)
- The figure below shows a wire wound round a soft iron core. A copper cube ,R, is placed just
below end Q.
i) Identify poles P and...(Solved)
The figure below shows a wire wound round a soft iron core. A copper cube ,R, is placed just
below end Q.

i) Identify poles P and Q when switch S is closed.
ii) State and explain what happens to copper cube R when switch S is closed.
Date posted: November 4, 2019. Answers (1)
- Below is a nuclear reaction equation.
Determine the values X and Y(Solved)
Below is a nuclear reaction equation.

Determine the values X and Y
Date posted: November 4, 2019. Answers (1)
- A pinhole camera is designed with many pinholes. State and explain what is observed on the image when the number of pinholes is decreased.(Solved)
A pinhole camera is designed with many pinholes. State and explain what is observed on the image when the number of pinholes is decreased.
Date posted: November 4, 2019. Answers (1)
- The table below shows radiations in their decreasing order of energy.
Identify radiation labeled Q(Solved)
The table below shows radiations in their decreasing order of energy.
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Identify radiation labeled Q
Date posted: November 4, 2019. Answers (1)
- The figure below shows two plane mirrors inclined at 450 to one another. A ray of light is incident to the top mirror at 450.
Draw...(Solved)
The figure below shows two plane mirrors inclined at 450 to one another. A ray of light is incident to the top mirror at 450.

Draw the path followed by the ray after reflection.
Date posted: November 4, 2019. Answers (1)
- The table below shows data collected during investigation of Hooke’s law.
a). Complete the table.
b). Using the data in the table, plot a graph of force,...(Solved)
The table below shows data collected during investigation of Hooke’s law.

a). Complete the table.
b). Using the data in the table, plot a graph of force, F against extension, e in the attached gird below.
c). On the graph, indicate X, at the elastic limit
d). From the graph, determine the elastic spring constant for the material.
Date posted: November 4, 2019. Answers (1)
- A 2kg particle tied to rope is rotated about a circle of radius 10 m. given that the maximum tension allowed in the rope is...(Solved)
A 2kg particle tied to rope is rotated about a circle of radius 10 m. given that the maximum tension allowed in the rope is 50 N, determine the maximum speed of the particle if it is rotating in a:-
i). horizontal path.
ii). vertical path.
Date posted: November 4, 2019. Answers (1)
- What is the difference between uniform linear motion and uniform circular motion?(Solved)
What is the difference between uniform linear motion and uniform circular motion?
Date posted: November 4, 2019. Answers (1)
- What property of a gas makes it suitable for inflating tubes? (Solved)
What property of a gas makes it suitable for inflating tubes?
Date posted: November 4, 2019. Answers (1)
- The figure below shows a 4m long uniform metal rod balanced horizontally when two forces act on it as shown.
Determine the value of F given...(Solved)
The figure below shows a 4m long uniform metal rod balanced horizontally when two forces act on it as shown.

Determine the value of F given that the rod weighs 8 N.
Date posted: November 4, 2019. Answers (1)
- Name one scientific skill learnt in a physics practical class. (Solved)
Name one scientific skill learnt in a physics practical class.
Date posted: November 4, 2019. Answers (1)
- The temperature of water in a measuring cylinder is raised from 0oC to 15oC. Sketch the graph of volume against temperature. (Solved)
The temperature of water in a measuring cylinder is raised from 0oC to 15oC. Sketch the graph of volume against temperature.
Date posted: November 4, 2019. Answers (1)
- The figure below shows air blown into a major tube attached to two minor tubes that have been immersed in water. Explain what is observed...(Solved)
The figure below shows air blown into a major tube attached to two minor tubes that have been immersed in water. Explain what is observed then indicate the levels of water in the tubes of beaker X and Y.
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Date posted: November 4, 2019. Answers (1)
- Two identical springs in figure below, each of spring constant 6N/cm has negligible weight. They are used to support a load of 4 kg as...(Solved)
Two identical springs in figure below, each of spring constant 6N/cm has negligible weight. They are used to support a load of 4 kg as shown. Determine the total extension of the system.
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Date posted: November 4, 2019. Answers (1)