Explain the wave-particle duality of light. (b) A particle of wavelength 4.2x 10\(^{-11}\)m travels with a momentum of 1.6 x 10\(^{-23}\) kg m/s. Determine the value of the Planck's constant, h.

The circuit diagram below is a simple current rectifier circuit. Use it to answer the questions that follow:In the actual exam, an image will be provided that displays a simple current rectifier circuit. This diagram will feature various components, with specific parts labeled A and B for identification. Part A will typically represent a component associated with the generation or handling of alternating current (AC), such as a transformer or AC source, while part B will represent a component used for smoothing the rectified current, like a capacitor or an inductor. The layout will be clear, showing connections between these components and others, to illustrate how the current flows and is modified in the circuit.(a) State the function of each of the parts labelled A and B. Sketch the output signal produces.

A projectile is fired at an angle of 30° to the horizontal with a velocity of 40 m/s Calculate the velocity attained after 1 s. [g = 10 m/s\(^2\)]

(a) Name two artificial satellites.(b) A geostationary satellite moves in an orbit of radius 6300 km. Calculate the speed with which it moves in the orbit. π = \(\frac{22}{7}\)

The load-extension graph of an elastic material is illustrated below. Use the graph to determine the work done in stretching the material<img alt="" class="alignnone size-full wp-image-2187396" height="141" src="https://data.ulearngo.com/assets/59a6dae6-202d-48d4-a2a0-3f4183c35344" width="414"/>

2021 WAEC SSCE Physics Past Questions

Explain the wave-particle duality of light. (b) A particle of wavelength 4.2x 10\(^{-11}\)m travels with a momentum of 1.6 x 10\(^{-23}\) kg m/s. Determine the value of the Planck's constant, h.

The circuit diagram below is a simple current rectifier circuit. Use it to answer the questions that follow:In the actual exam, an image will be provided that displays a simple current rectifier circuit. This diagram wil…

A projectile is fired at an angle of 30° to the horizontal with a velocity of 40 m/s Calculate the velocity attained after 1 s. [g = 10 m/s\(^2\)]

(a) Name two artificial satellites.(b) A geostationary satellite moves in an orbit of radius 6300 km. Calculate the speed with which it moves in the orbit. π = \(\frac{22}{7}\)

The load-extension graph of an elastic material is illustrated below. Use the graph to determine the work done in stretching the material