2012
The thermopile is a device for detecting
See more
2012 WAEC SSCE Physics Past Questions
Ulearngo is an independent study app. It is not affiliated with, endorsed by, or representing West African Examinations Council (WAEC). Always confirm official exam, admission, registration, syllabus, timetable, and result information from WAEC official website, WAEC Nigeria.
2012
A metal sheet of area 100cm2 was heated through 70oC. Calculate its new area if the linear expansivity of the metal is 0.000017k-1
See more
2012
An object is placed at a point X between the focal point F and the optical centre C of a diverging lens. If F is the focal point on the other side of the lens, the image of the object is formed between
See more
2012
A to eater to glass to air to water to glass to air. Given that the refractive index for light passing from air to water is \(\frac{4}{3}\) and air to glass is \(\frac{3}{2}\), calculate the refractive index of glass rel…
See more
2012
An object of height 2.5cm is places 20cm from a concave mirror of focal length 10cm. Calculate the height of its image
See more
2012
Which of the following properties of waves is exclusive to transverse waves?
See more
2012
When two waves are superimposed on each other, the following occurrences are possible, except
See more
2012
When two like charges are brought together, the potential energy of the system formed will
See more
2012
Which of the following sets of coloured light is/are secondary colours i. Red, Blue and green ii. Blue, cyan and magneta iii. Green, Magenta and yellow, IV Yellow, Cyan and Magenta
See more
2012
The sound heard by a person after the reflection of the sound generated by him is called
See more
2012
A telescope is said to be in normal adjustment when the
See more
2012
A 12\(\Omega\) resistor dissipates 8 kJ of heat in 20s. Calculate the current through the resistor
See more
2012
Six dry cells each of e.m.f. 2.0 and internal resistance of 1.0\(\Omega\) are connected in parallel across a load of 3.0\(\Omega\). Calculate the effective current in the circuit
See more
2012
Which of the following properties is an advantage of lead-acid accumulator over an alkaline accumulator?
See more
2012
Two capacitors, each of capacitance 2\(\mu F\) are connected in parallel. If the p.d across them is 120V, calculate the charge on each capacitor
See more
2012
In a R-C circuit
See more
2012
An inductor is connected to a 24V, 50Hz mains supply. If the current through the inductor is 1.5A, calculate the inductance of the inductor (\(\pi = \frac{22}{7}\))
See more
2012
Which of the following modes is the most economical method of transmitting electrical power over long distances?
See more
2012
the core of a transformer is usually laminated in order to
See more
2012
The magnetic relay is a device used for
See more