Which of the following lenses is a converging lens? A. Spherical-convex lens B. Convexo-concave lens C. Double-convex lens D. Plano-concave lens
Double-convex lens is a converging lens.
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Updated 10/2/2018 5:28:04 PM
Edited by alfred123 [10/2/2018 5:27:23 PM]
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Through which one of the following mediums is the velocity of a sound wave the greatest? A. Water B. Steel C. Air D. Lead
Weegy: The velocity of a sound wave is the greatest through steel. (More)
Updated 10/21/2018 9:16:11 AM
The number of waves that pass a particular point in a body in a unit of time is called the _______ of the waves. A. frequency B. amplitude C. rarefaction D. compression
Updated 9/26/2018 6:42:52 PM
The number of waves that pass a particular point in a body in a unit of time is called the frequency of the waves.
Which of the following phenomena is taking place when sound waves are reflected from a surface along parallel lines? A. Absorption B. Focusing C. Refracting D. Diffusion
Weegy: Refracting is taking place when sound waves are reflected from a surface along parallel lines. (More)
Updated 9/26/2018 6:40:07 PM
The change in pitch of a train's horn as it passes while you are standing still can be explained by? A. resonance. B. sympathetic vibration. C. the Doppler effect. D. ultrasonic vibrations
Weegy: The change in pitch of a train's horn as it passes while you are standing still can be explained by the Doppler Effect. (More)
Updated 9/27/2018 9:15:08 PM
During the process of steel production, the flaws in steel casting are detected by A. longitudinal vibrations. B. resonant vibrations. C. infrasonic vibrations. D. ultrasonic vibrations
Weegy: During the process of steel production, the flaws in steel casting are detected by ultrasonic vibrations. (More)
Updated 10/21/2018 9:13:24 AM
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