This is to distribute the heat evenly thus preventing localized heating.
lendiritu answered the question on January 16, 2018 at 11:27
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Can visible light produce interference fringes? Explain
(Solved)
Can visible light produce interference fringes? Explain
Date posted:
January 8, 2018
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Answers (1)
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A boy heats 5kg of water to a temperature of 80oC. When she adds m kg of water at 15oC the mixture attains a...
(Solved)
A boy heats 5kg of water to a temperature of 80oC. When she adds m kg of water at 15oC the mixture attains a temperature of 40oC. Determine the value of m
Date posted:
January 7, 2018
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Answers (1)
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State the advantages of solid state devices over vacuum tubes
(Solved)
State the advantages of solid state devices over vacuum tubes.
Date posted:
January 6, 2018
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Answers (1)
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State and explain the effect of increasing the extra high tension E.H.T in an x-ray tube on the x-rays.
(Solved)
State and explain the effect of increasing the extra high tension E.H.T in an x-ray tube on the x-rays.
Date posted:
January 3, 2018
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Answers (1)
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There are two types of seismic waves produced by earthquakes. They are called P-waves and S-waves. P-waves are longitudinal and S-waves are transverse.(a) Explain...
(Solved)
There are two types of seismic waves produced by earthquakes. They are called P-waves and S-waves. P-waves are longitudinal and S-waves are transverse.
(a) Explain what is meant by the terms longitudinal and transverse.
longitudinal
transverse
(b) State another example of a longitudinal wave, a transverse wave.
Date posted:
January 2, 2018
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Answers (1)
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A box is lying on the floor of a fast moving truck; it is observed that when the lorry is suddenly brought to rest,...
(Solved)
A box is lying on the floor of a fast moving truck; it is observed that when the lorry is suddenly brought to rest, the final position of the box is nearer to the lorry than before. Explain this observation.
Date posted:
January 1, 2018
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Answers (1)
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Ether is put in a beaker which is placed on a thin film of water. A student blows the ether through a pipe continuously, state and...
(Solved)
Ether is put in a beaker which is placed on a thin film of water. A student blows the ether through a pipe continuously, state and explain the observation made after some time.
Date posted:
December 18, 2017
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Answers (1)
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Explain how doping produces an n-type semiconductor for a pure semiconductor material
(Solved)
Explain how doping produces an n-type semiconductor for a pure semiconductor material.
Date posted:
December 14, 2017
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Answers (1)
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State three advantages of using GM tube instead of a diffusion cloud chamber to detect radiations from radiations from radioactive substance.
(Solved)
State three advantages of using GM tube instead of a diffusion cloud chamber to detect radiations from radiations from radioactive substance.
Date posted:
December 12, 2017
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Answers (1)
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State the advantages of lead acid accumulator over primary cell
(Solved)
Advantages of lead acid accumulator over primary cell
Date posted:
December 9, 2017
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Answers (1)
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Explain the effects of total internal reflection
(Solved)
Explain the effects of total internal reflection.
Date posted:
November 27, 2017
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Answers (1)
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State the advantages of using mercury as a liquid in glass thermometer.
(Solved)
State the advantages of using mercury as a liquid in glass thermometer.
Date posted:
November 24, 2017
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Answers (1)
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Explain why water wets glass tubes.
(Solved)
Explain why water wets glass tubes.
Date posted:
November 24, 2017
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Answers (1)
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What are the disadvantages of using alcohol as a thermometric liquid?
(Solved)
This is under thermal expansion.
Date posted:
November 21, 2017
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Answers (1)
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Explain why the feet feel colder when a person stands on a cemented floor than when on a wooden floor.
(Solved)
This is under Heat transfer.
Date posted:
November 21, 2017
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Answers (1)
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Explain why luggage compartments are situated in the lower parts of buses.
(Solved)
This is under equilibrium and center of gravity.
Date posted:
November 21, 2017
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Answers (1)
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Explain why a glass window soon becomes dusty when wiped dry with a dry cloth on a dry day.
(Solved)
This is under Electrostatics.
Date posted:
November 21, 2017
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Answers (1)
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Explain how heat loss through conduction and radiation is minimized in a vacuum flask
(Solved)
Explain how heat loss through conduction and radiation is minimized in a vacuum flask.
Date posted:
November 21, 2017
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Answers (1)
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When a brush is in water,the bristles spread but when it is taken out of water, the bristles cling together. Explain
(Solved)
When a brush is in water,the bristles spread but when it is taken out of water, the bristles cling together. Explain.
Date posted:
November 21, 2017
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Answers (1)
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State the advantages and disadvantages of anomalous expansion of water?
(Solved)
State the advantages and disadvantages of anomalous expansion of water?
Date posted:
November 20, 2017
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Answers (1)