When white light is incident on a glass prism the spectrum produced on a screen placed beyond the prism is due to?
A. Diffraction B. Reflection C. Refraction D. Polarisation E. Interference Correct Answer: Option C – Refraction
Which of the following explains why a thick glass cup cracks when boiling water is poured into it?
A. Unequal expansion of the exterior and interior walls of the cup B. Anomalous expansion of the water C. Greater specific latent capacity of water compared with that of glass D. Large increase in the heat capacity of the cup E. High density of the water Correct...
A piece of copper of mass 30g loses 60J of heat energy. If the specific heat capacity of copper is 400Jkg−¹K−¹, Calculate the change in the temperature of the copper
A. 0.2K B. 0.8K C. 2K D. 4.5K E. 5K Correct Answer: Option E – 5K
A solid plastic cube of side 0.2m is submerged in a liquid density of 0.8kgm−³. Calculate the upthrust of the liquid on the cube (g=10ms−²)
A. 0.064N B. 0.025N C. 0.016N D. 0.008N E. 0.003N Correct Answer: Option A – 0.064N Explanation Upthrust = Volume of fluid displaced =vpg =0.2 x 0.2 x 0.2 x0.8 x 10= 0.064Nwhat would be the weight of the missile at that altitude?
A missile weighing 400N on the earth’s surface is shot into the atmosphere to an altitude of 6.4 x 10^−6m. Taking the earth as a sphere of radius 6.4 x 10^−6m and assuming the inverse-square law of universal gravitation, what would be the weight of the missile...Products
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Co-Ownership Structures and Land Acquisition Methods in Nigeria
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Rights in Community Land and Fundamental Land Concepts in Nigeria
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Land Ownership Principles and Transaction Laws in Nigeria
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