i) Wavelength- This is the distance between two successive crests or troughs. SI Unit is Meter (m)
ii) Amplitude – It is the maximum displacement of particles of a medium from the mean/fixed position in either direction. SI Unit is meter (m)
iii) Periodic time – It is the time taken to complete one oscillation. SI Unit is second(s)
iv) Frequency – Is the number of complete oscillations made by a particle in unit time. SI unit is Hertz (Hz)
Wilfykil answered the question on March 26, 2019 at 06:04
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Define the refractive index of a substance
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Define the refractive index of a substance.
Date posted:
March 26, 2019
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Answers (1)
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The following reaction is part of reactive series.
(Solved)
The following reaction is part of reactive series.
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Date posted:
March 26, 2019
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Answers (1)
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A source generates 40 waves in a second. If the wavelength is 8.5 cm. Calculate the time taken to reach a wall 102 m from...
(Solved)
A source generates 40 waves in a second. If the wavelength is 8.5 cm. Calculate the time taken to reach a wall 102 m from the source.
Date posted:
March 26, 2019
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Answers (1)
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State one effect that would be observed when water waves pass from deep to shallow water.
(Solved)
State one effect that would be observed when water waves pass from deep to shallow water.
Date posted:
March 26, 2019
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Answers (1)
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Figure below shows the displacement – time graph for a certain wave
(Solved)
Figure below shows the displacement – time graph for a certain wave
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Date posted:
March 26, 2019
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Answers (1)
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(Solved)
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Date posted:
March 26, 2019
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Answers (1)
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(Solved)
Distinguish between ductile end and brittle material
Date posted:
March 26, 2019
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Answers (1)
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(Solved)
Two identical springs of spring constant 3N/cm are used to support a load of 30N as shown. Determine the extension of each spring.
Date posted:
March 26, 2019
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Answers (1)
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An experiment was performed to find out how the length L of a spiral spring varies with the compression force, F. The figure below shows...
(Solved)
An experiment was performed to find out how the length L of a spiral spring varies with the compression force, F. The figure below shows the variation.
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Date posted:
March 26, 2019
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Answers (1)
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The figure below shows a metallic rod placed in a coil connected to battery terminals A and B.
(Solved)
The figure below shows a metallic rod placed in a coil connected to battery terminals A and B.
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Date posted:
March 26, 2019
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Answers (1)
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(Solved)
State FOUR reasons why the efficiency of an electric motor is always less than 100%
Date posted:
March 26, 2019
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Answers (1)
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Figure below shows a D.C electric motor.
(Solved)
Figure below shows a D.C electric motor.
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Date posted:
March 26, 2019
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Answers (1)
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An un-insulated copper wire XY lies over the fixed wire A and B connected to a battery when the key in the circuit is closed,...
(Solved)
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(iii) When is the force on the wire XY greatest?
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Date posted:
March 26, 2019
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Answers (1)
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An iron rod XY is placed inside a coil of wire. What type of magnetic pole is induced at the end x when the current...
(Solved)
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Date posted:
March 26, 2019
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Answers (1)
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Figure below shows an incomplete circuit of an electromagnet. Complete the circuit between X and Y by drawing the windings on the two arms of...
(Solved)
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Date posted:
March 26, 2019
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Answers (1)
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(Solved)
An armature composed of turns of insulated copper wire wound on a laminated soft- iron core is rotated in a magnetic field to generate an e.m.f. Use this information to answer the following questions.
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Date posted:
March 26, 2019
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Answers (1)
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Figure below shows an electric generator. The points P and Q are connected to a Cathode Ray Oscilloscope (CRO).
(Solved)
Figure below shows an electric generator. The points P and Q are connected to a Cathode Ray Oscilloscope (CRO).
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Date posted:
March 26, 2019
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Answers (1)
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State characteristics of an image observed in a concave mirror when the object is between the focal point and the mirror.
(Solved)
State characteristics of an image observed in a concave mirror when the object is between the focal point and the mirror.
Date posted:
March 26, 2019
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Answers (1)
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Figure below shows the reading on a burette after 55 drops of a liquid have been used. If the initial reading was at zero mark,...
(Solved)
Figure below shows the reading on a burette after 55 drops of a liquid have been used. If the initial reading was at zero mark, determine the volume of one drop.
Date posted:
March 25, 2019
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Answers (1)
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A small object is placed 30cm away from a diverging lens of focal length 10cm. Determine by scale drawing the position and nature of image...
(Solved)
A small object is placed 30cm away from a diverging lens of focal length 10cm. Determine by scale drawing the position and nature of image formed.
Date posted:
March 25, 2019
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Answers (1)