UTME/SSCE Physics Practice Tests – Reflection of Light Waves

Physics Practice Tests – Reflection of Light Waves


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An object is placed on the principal axis and at the centre of curvature of a concave mirror, the image of the object formed by the mirror is _______

A. real and magnified     
B. real and inverted     
C. erect and magnified
D. erect and virtual

The image of an object is located 6cm behind a convex mirror. If its magnification is 0.6, calculate the focal length of the mirror.  

A. 3.75 cm      B. 6.60 cm      C. 10.00 cm      D. 15.00 cm

An incident ray is reflected normally by a plane mirror onto a screen where it forms a bright spot. The mirror and screen are parallel and 1 m apart. If the mirror is rotated through 5°, calculate the displacement of the spot.

A. 8.7 cm    B. 10.0 cm    C. 15.4 cm    D. 17.6 cm

Convex spherical mirrors are preferred to plane mirrors as driving mirrors because ______

A. the image produced is upright and clearly visible.
B. it provides a wider field of view.
C. the image produced is erect and diminished
D. the image produced is not laterally inverted.

A converging lens produces an image four times as large as an object placed 25cm from the lens. Calculate its focal length.

A. 100 cm    B. 33 cm    C. 29 cm    D. 20 cm

The simple periscope is an optical instrument which

I. comprises two parallel plane mirrors suitably arranged.
II. magnifies images of objects.
III. is used for viewing objects behind obstacles.

Which of the statements above is/are correct?

A. I, II and III      B. I and III only      C. I and II only      D. II only E. III only

At which position should an object be placed in front of a concave mirror in order to obtain an image which is of the same size as the object?

A. At the centre of curvature.
B. At the principal focus.
C. Between the pole and principal focus.
D. Between the centre of curvature and principal focus.

When an object is placed at the centre of curvature of a concave mirror, its image is formed at _______

A. the focus
B. infinity
C. the centre of curvature
D. a distance twice the radius of curvature.


The diagram above illustrates the sun, moon and earth in the same straight line during an eclipse. An observer at the point P on earth observes

A. annular eclipse
B. partial eclipse
C. total eclipse
D. no eclipse.

Which of the following phenomena is not a direct consequence of rectilinear propagation of light?

A. Lunar and solar eclipses
B. Images of objects in a pinhole camera
C. Diffraction of light.
D. Shadows of opaque objects.

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