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Physics WAEC / WASSCE 2004 Waves and Optics
In an experiment using a converging lens to produce real images on a screen, the linear magnification m, is plotted against the image distance v, as illustrated in the diagram below. The distance OP represents the
Attached Figure / Diagram
Question diagram
A
focal legth of the lens
B
thickness of the lens
C
radius of curvature of the lens
D
diameter of the lens
medium Difficulty
Physics UTME / JAMB 2004 Waves and Optics
Calculate the angle of minimum deviation for a ray which is refracted through an equiangular prism of refractive index 1.4
A
600
B
290
C
990
D
900
medium Difficulty
Physics NECO SSCE 2004 Waves and Optics
The general equation of a wave CANNOT be written as
A
y = A Sin [2 π (\(\frac{t}{T}\) ± Xλ)]
B
y = A Sin [wt ± kx]
C
y = A Sin [2 \(\frac{\pi}{\lambda}\) (vt ± x)]
D
y = A Sin [2π (ft ± \(\frac{X}{\lambda}\) )]
E
y = A Sin 2 π f(T ± \(\frac{X}{\lambda}\))]
medium Difficulty
Physics NECO SSCE 2004 Waves and Optics
A voltage supply of 12V r.m.s. and frequency 90Hz is connected to a 4 ω resistor. Calculate the peak value of the current
A
48.8 A
B
30.0 A
C
27.5 A
D
4.2 A
E
3.0A
medium Difficulty
Physics NECO SSCE 2004 Waves and Optics
How far from a hill should a boy stand to hear the echo of his clap 1 .6s later? [Speed of sound in air is 340ms-1]
A
186m
B
272m
C
544m
D
1088m
E
2000m
medium Difficulty
Physics NECO SSCE 2004 Waves and Optics
Which of the statements about prism binoculars is/are correct? They I. are a pair of two telescopes mounted side by side II. reduce the optical path of the light ray from the objective to the eye piece III, present inverted and diminished image to the viewer IV. present erect and magnified image to the viewer.
A
I only
B
II only
C
I and II only
D
I, II and IV only
E
II, III and IV only
medium Difficulty
Physics NECO SSCE 2004 Waves and Optics
The frequency of a body executing simple harmonic motion when left undisturbed is known as__________ frequency.
A
damped
B
forced
C
free
D
natural
E
sinusoidal
medium Difficulty
Physics NECO SSCE 2004 Waves and Optics
For total internal reflection to occur, I. light must be travelling from an optically more dense to an optically less dense medium. II. the angle of incidence in the denser medium must be greater than its critical angle. III. the angle of refraction in the less dense medium must be equal to 90 °. Which of the statements above is/are correct?
A
I only
B
II only
C
III only
D
I and II only
E
II and III only.
medium Difficulty
Physics NECO SSCE 2004 Waves and Optics
A note, A from a guitar produces a wave of amplitude 4 mm and frequency 1000 Hz. Another note, B from a whistle produces a similar waveform of amplitude 2 mm and frequency 2200 Hz. If the two notes are compared,
A
A has a higher pitch than B
B
A is louder than B.
C
B has a greater speed than A
D
B is louder than A
E
A and B have the same quality
medium Difficulty
Physics NECO SSCE 2004 Waves and Optics
A surface in the path of an advancing wave on which all the particles are in the same state of disturbance is called a
A
crest
B
cycle
C
pulse
D
trough
E
wave front
medium Difficulty
Physics NECO SSCE 2004 Waves and Optics
Calculate the wavelength of light travelling with a speed of 3 × 108ms-1 and a frequency of 6.2 × 1014Hz.
A
4.8 × 10-8m
B
4.8 × 10-7m
C
4.8 × 10-6m
D
4.8 × 10-5m
E
4.8 × 10-4m
medium Difficulty
Physics NECO SSCE 2004 Waves and Optics
A ray of light experiences a minimum deviation when passing through an equilateral triangular glass prism. Calculate the angle of incidence of the ray. [Refractive index of glass = 1.5]
A
300.0°
B
48.6°
C
60.0°
D
75.5°
E
105.0 °
medium Difficulty
Physics WAEC / WASSCE 2004 Waves and Optics
A parallel beam of unpolarised light is incident on a plane glass surface at an angle of 58\(^{o}\) to the normal. If the reflected beam is completely polarised, calculate the refractive index of the glass.
medium Difficulty
Physics WAEC / WASSCE 2004 Waves and Optics
State three methods of polarising an unpolarised light
medium Difficulty
Physics WAEC / WASSCE 2004 Waves and Optics
Give three observations in support of de Broglie's assumption that moving particles behave like waves.
medium Difficulty
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