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Describe and experiment for location of an image by the non-parallax method.
Date posted:
October 11, 2018
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What is the difference between regular reflection and diffuse reflection?
Date posted:
October 11, 2018
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Explain the applications of rectilinear propagation of light.
Date posted:
October 11, 2018
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Describe an experiment to show that light travels in a straight line.
Date posted:
October 11, 2018
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State the principal features of a thermos flask.
Date posted:
October 11, 2018
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Describe experiments to demonstrate convection in liquids; heating water in a beaker and model of hot water system experiment
Date posted:
October 11, 2018
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Describe experiments to show convention in gases; model chimney (smoke box) and revolving paper-vane experiments.
Date posted:
October 11, 2018
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Describe an experiment comparing thermal conductivity of metals.
Date posted:
October 11, 2018
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Describe with aid of diagrams 5 types of thermometers
Date posted:
October 11, 2018
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Describe an experiment to show expansion of gases
Date posted:
October 11, 2018
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Describe the applications of the expansion of solids.
Date posted:
October 9, 2018
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Describe the experiment to investigate actual expansion of solids, using a bimetallic strip.
Date posted:
October 9, 2018
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Describe the bar-breaker experiment.
Date posted:
October 9, 2018
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Describe the ball and ring experiment.
Date posted:
October 9, 2018
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Application of pressure in gases and liquids.
Date posted:
October 9, 2018
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With the aid of diagrams, describe four devices used in measuring pressure
Date posted:
October 9, 2018
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A man blows into one end of a U-tube containing water until the levels differ by 40.0 cm. if the atmospheric pressure is 1.01 × 105 N/m2 and the density of water is 1000 kg/m3, calculate his lung pressure.
Date posted:
October 9, 2018
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The height of the mercury column in a barometer is found to be 67.0 cm at a certain place. What would be the height of a water barometer at the same place? (Densities of mercury and water are 1.36 × 104 kg/m3 and 1.0 × 103 kg/m3 respectively.)
Date posted:
October 9, 2018
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A rectangular brick of weight 10 N, measures 50 cm × 30 cm × 10 cm. calculate the values of the maximum and minimum pressures which the block exert when resting on a horizontal table.
Date posted:
October 9, 2018
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The length of a spring is 16.0 cm. its length becomes 20.0 cm when supporting a weight of 5.0 N. calculate the length of the spring when supporting a weight of: (a) 2.5 N (b) 6.0 N (c) 200 N
Date posted:
October 9, 2018
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The speed of sound in air is 340 m/s.A loudspeaker placed between two walls X and Y, but nearer to wall x than wall y, is sending out constant sound pulses.How far is the speaker from wall Y if it is 200 m from wall X and the time between the two echoes received is 0.176 s.
Date posted:
September 17, 2018
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A cog wheel rotating uniformly produces sound of wavelength 1.65 m. If it makes 10 revolutions/second, find the number of teeth on the wheel, given that the velocity of sound in air is 330 m/s.
Date posted:
September 17, 2018
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It is noted that 250 cm^3 of fluid flows out of a tube, whose inner diameter is 7 mm,in a time of 41 s. What is the average velocity of the fluid in the tube?
Date posted:
September 17, 2018
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A water wave travels 12 m in 4 s. If the frequency of the waves is 2 Hz, calculate the speed and the wavelength of the wave.
Date posted:
September 17, 2018
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The length of a spring is 16cm. Its length becomes 20cm when supporting a weight of 5.0N.Calculate the length of the spring when supporting a weight of 200N and comment based on the answer.
Date posted:
September 17, 2018
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A metal cube suspended freely from the end of a spring causes it to stretch by 5 cm. A 500g mass suspended from the same spring stretches it by 2 cm. If the elastic limit is not exceeded, by what length will the spring stretch if a mass of 1.5 kg is attached to its end?
Date posted:
September 17, 2018
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What will happen if you throw an empty glass jar with lid on and tight into a fire? Explain
Date posted:
September 11, 2018
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Explain the difference in the shape of the drops of mercury and water when placed on a clean glass surface.
Date posted:
August 21, 2018
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A white paper is a good reflector of light but does not form an image like a mirror. Explain this observation
Date posted:
August 19, 2018
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You are provided with the following apparatus.
- a spring balance
- a beaker
- cork
- a sinker
- water
Using the above apparatus, describe an experiment to determine the relative density of cork.
Date posted:
August 19, 2018