A closed organ pipe and an open organ pipe emit fundamental notes of the same pitch in the same air. Ignore end corrections. The ratio of the length of the air column in the closed pipe to that of the open pipe is....
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UNIBEN Engineering and Physical Sciences Post UTME General Paper Past Questions
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One advantage of alcohol over mercury as a thermometric fluid is that ______
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A linear Celsius thermometer is calibrated at the ice point, 0°C, and the steam point, 100°C, at standard atmospheric pressure. These fixed points are 70 cm apart. When its reading is 63 cm above the ice point, the tempe…
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A toy car of mass 8kg initially at rest is accelerated at a rate of 2ms/s for 3 sees. The kinetic energy of the toy car is....
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A ball is projected so as to attain maximum range. Determine the angle with which the ball must be projected.
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If ST = 5m, the moment of the force of 10N about S in the diagram below is....
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A stone gives a reading of 80 g on a gram-calibrated balance in air, 50 g when completely immersed in water and 65 g when completely immersed in liquid Y. Ignore air buoyancy. What is the relative density of Y?
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An orange falls from a height of 20m. How long does it take to reach the ground?
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The magnitude of the resultant of two equal vectors, each of magnitude K units and acting at right angle to each other is....
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The locus of a point which is equidistant from two given fixed points is the....
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A chord XY of a circle of radius 14cm subtends an angle of 60° at the centre. Find the length of arc XY
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A chord is 5cm from the centre of a circle of diameter 26cm. Find the length of the chord.
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In a regular pentagon ABCDE, AC intersects BD at F. Calculate CBD.
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The interior angle of a pentagon arc 130\(^{\circ}\), 118\(^{\circ}\), 80\(^{\circ}\), 78\(^{\circ}\) and x. Find the value of x.
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If v varies directly as the square of x and inversely as y, and if v = 18 when x = 3 and y = 4, find v when x = 5 and y = 2.
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Find the equation of a line with gradient -2 passing through the point (1,2).
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The population of a village is 5846. Express this number to three significant figures
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A Headmaster contributes 7% of his income into a fund and his wife contributes 4% of her income. If the husband earns ₦5,500 per annum and the wife earns ₦4,000 per annum, find the sum of their annual contribution to the…
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What value of \(k\) makes the expression \(x^2-8x+k=0\) a perfect square?
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1f \(3\log a + 5\log a - 6\log a = \log 64\), what is a?
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