WAEC Physics questions

379 questions with answers and explanations. Tap an option to check yourself.

All JAMB WAEC

Question 161· Heat transfer· WAEC
A sea breeze blows during the day because
Explanation and discussion
Question 162· Heat transfer· WAEC
A vacuum flask reduces heat loss by radiation using
Explanation and discussion
Question 163· Heat transfer· WAEC
Cooking pots have wooden or plastic handles because these materials are
Explanation and discussion
Question 164· Heat transfer· WAEC
During the day, a breeze blows from the sea to the land because
Explanation and discussion
Question 165· Heat transfer· WAEC
A vacuum flask reduces heat loss by conduction and convection mainly because of the
Explanation and discussion
Question 166· Heat transfer· WAEC
Convection cannot take place in
Explanation and discussion
Question 167· Heat transfer· WAEC
The transfer of heat by the movement of the heated fluid itself is
Explanation and discussion
Question 168· Heat transfer· WAEC
On a hot afternoon in Kano, heat passes through the thickness of a metal roof sheet mainly by
Explanation and discussion
Question 169· Heat transfer· WAEC
In a vacuum flask the silvered walls reduce heat loss by
Explanation and discussion
Question 170· Heat transfer· WAEC
Heat from a fire reaches a person sitting beside it mainly by
Explanation and discussion
Question 171· Introductory electronics· WAEC
A semiconductor diode is mainly used as a
Explanation and discussion
Question 172· Introductory electronics· WAEC
Adding a pentavalent impurity such as phosphorus to pure silicon produces
Explanation and discussion
Question 173· Introductory electronics· WAEC
The output of an OR gate is 0 only when
Explanation and discussion
Question 174· Introductory electronics· WAEC
A p–n junction diode is forward biased when the p-side is connected to the
Explanation and discussion
Question 175· Introductory electronics· WAEC
A semiconductor diode allows current to flow
Explanation and discussion
Question 176· Introductory electronics· WAEC
Silicon doped with boron becomes
Explanation and discussion
Question 177· Introductory electronics· WAEC
A device that changes a.c. to d.c. is a
Explanation and discussion
Question 178· Introductory electronics· WAEC
A device that converts light energy directly into electrical energy is a
Explanation and discussion
Question 179· Introductory electronics· WAEC
The three terminals of a transistor are the
Explanation and discussion
Question 180· Light: reflection· WAEC
According to the laws of reflection, the angle of incidence is equal to the
Explanation and discussion

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WAEC Physics questions

A sea breeze blows during the day because

A vacuum flask reduces heat loss by radiation using

Cooking pots have wooden or plastic handles because these materials are

During the day, a breeze blows from the sea to the land because

A vacuum flask reduces heat loss by conduction and convection mainly because of the

Convection cannot take place in

The transfer of heat by the movement of the heated fluid itself is

On a hot afternoon in Kano, heat passes through the thickness of a metal roof sheet mainly by

In a vacuum flask the silvered walls reduce heat loss by

Heat from a fire reaches a person sitting beside it mainly by

A semiconductor diode is mainly used as a

Adding a pentavalent impurity such as phosphorus to pure silicon produces

The output of an OR gate is 0 only when

A p–n junction diode is forward biased when the p-side is connected to the

A semiconductor diode allows current to flow

Silicon doped with boron becomes

A device that changes a.c. to d.c. is a

A device that converts light energy directly into electrical energy is a

The three terminals of a transistor are the

According to the laws of reflection, the angle of incidence is equal to the