Professor Peters walks directly toward a plane mirror at a speed of 0.25 m/s. Determine the speed of the image relative to him.
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UI Post UTME Physics Past Questions
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How many images are formed when an object is placed in front of two plane mirrors that are inclined at angle 30\(^{\circ}\) to each other?
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How far from a concave mirror of radius 120 cm must an object be placed such that its erect image is four times its natural size?
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A luminous object is placed at a given distance from a converging lens of focal length 12cm and a real image is produced. Find the image distance if it is equal to the object distance.
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A light sensitive area at the back of the eye where images are formed is called
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Which one of the following statements concerning waves is false?
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Which one of the following statements concerning electromagnetic waves is false?
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Which of the following statements is true about electromagnetic waves?
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Which of the following properties is not common to all waves?
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The sound heard after the reflection of sound wave from a plane surface is known as
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As transverse wave moves through a medium, the particles of the medium
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An organ pipe closed at one end is 80cm long. Determine the frequency of the fundamental note assuming that the speed of sound in air is 340m/s?
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A uniform wave has a speed of 10m/s and a period of 0.5 s. The distance between two nearest crests is
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A point on a stationary wave where there is no movement of the medium is called
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A plane progressive wave is represented by \(y = 2\sin 100t + 0.2x\) where all the symbols have their usual meanings. What is the velocity of the wave?
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A certain radioactive element has a half life of 20 years. How long will it take the activity to become \(\frac{1}{4}\) of its original?
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Which would cause a more serious burn: 30 g of steam or 30 g of liquid water, both at 100\(^{\circ}\)C and why is this so?
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Which of the following quantities of water has undergone the greatest change from its heat content at melting point?
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When water is heated in a glass vessel, the level first falls and then rises because
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What is the Celsius equivalent of 50.0\(^{\circ}\)F?
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