Answer:
Pressure is the perpendicular force applied per unit area.
p=3.0D contact lens is needed to correct his distant vision.
The person is suffering from myopia and hence need a concave lens to correct the defect. The lens should be such that an object at infinity must form its image at the far point.
Hence,f= -32.3cm
= -0.323m
we can define the power of the lens as the reciprocal of its focal length in metre.
The power of lens is the ability to converge and diverge rays of light.
The power of the lens can be obtained as:
p= 1/f
p=1/(-0.323)
p=3.0D
Thus,the power is 3.0D to correct his distant vision.
learn more about power of lens from here: brainly.com/question/17166887
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<h3><u>Answer;</u></h3>
<em>B. The wavelength of both transverse and longitudinal waves is measured parallel to the direction of the travel of the wave.</em>
<h3><u>Explanation;</u></h3>
- <em><u>Longitudinal waves are waves in which the vibration of particles is parallel to the direction of the wave motion.</u></em> The vibration of particles generates regions known as compressions and rarefactions. Therefore<em> </em><u><em>the wavelength is the distance between two successive rarefactions or compressions.</em></u>
- <u><em>Transverse waves on the other hand are those waves in which the vibration of particles is perpendicular to the direction of the wave motion. </em></u>The vibration of particles generates regions of maximum displacement called crests and regions of minimum displacement called troughs. Thus, <em><u>the wavelength is the distance between two successive crests or troughs.</u></em>
Answer:
The answer is c. Two billiards balls strike each other and bounce off moving in different directions
Hope this helps
