Answer:
Explanation:
Near point = 56 cm .
near point of healthy person = 25 cm
person suffers from long sightedness
convex lens will be required .
object distance u = 25 cm
image distance v = 56 cm
both will be negative as both are in front of the lens.
lens formula
I/v - 1 / u = 1/f
- 1/56 +1/25 = 1/f
- .01785 + .04 = 1/f
1/f = .02215
f = 45.15 cm .
Answer:
The correct answer is 24.
Explanation:
A ball hit by a man is stronger than a ball hit by a man because the man uses more force when hitting the ball than the boy does.
It's always a good idea to wear a seatbelt in a car, because if the car
comes to a sudden stop, you will not move forward very much since the
seatbelt is holding you back. The answer is letter D.
