Which of the following instruments is not a wind instrument?
A. clarinet B. saxophone C. trumpet D. xylophone Correct Answer: Option D D. xylophoneWhen two notes of nearly equal frequencies are sounded together, periodic rise and fall in sound intensity can be heard. This phenomenon can be called
A. beats B. diffraction C. overtones D. resonance Correct Answer: Option A A. beatsA pulse of a sound is transmitted from a ship and the reflection from the sea bed is recorded after 0.2s. Calculate the depth of the sea. [Take speed of sound in sea water = 1560m/s]
A. 312.0m B. 156.0m C. 78.0m D. 31.2m Correct Answer: Option B B. 156.0m Explanation x = vt/2 = (1560×0.2)/2 =156mIn a compound microscope, the image formed by the objective lens is at a distance of 3.0cm from the eye lens. Calculate the focal length of the eye lens.
A. 0.3cm B. 2.7cm C. 3.4cm D. 8.3cm Correct Answer: Option C C. 3.4cmA converging lens of focal length 15cm forms a virtual image at a point 10cm from the lens. Calculate the distance of the object from the lens.
A. 10.00cm B. 6.00cm C. 5.00cm D. 1.50cm Correct Answer: Option B B. 6.00cm Explanation 1/u+1/v=1/f = 1/15+1/10 u = 6.00Products
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Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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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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