a person needs a lens of power + 3d for correct his near vision and - 3d for correcting his distant vision. calculate the focal lengths of the lenses required to correct these defect.
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Answer:
power D=1/focal length
therefore focal length of lens with power +3d is
f=1/3=+0.33
and focal length of lens with power -3d is
f=1/-3=-0.33
Explanation:
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4
Answer:yes at a highest point
Explanation:when the body in a projectile motion at a highest point then its acceleration will be downward towards gravity and its velocity Will be perpendicular to g.
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