Answer: length or color
Explanation: length or color
Answer:
Explanation:
Pecan 1 and 4 seem the best answer
Reflection- serious thought or consideration
Absorption- the process or action by which one thing absorbs or is absorbed by another.
Diffusion- the spreading of something more widely.
Diffraction- the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge, typically accompanied by interference between the wave forms produced.
Refraction- measurement of the focusing characteristics of an eye or eyes
I think it’s ultraviolet, if not i’m sorry!
Answer:
The near point of an eye with power of +2 dopters, u' = - 50 cm
Given:
Power of a contact lens, P = +2.0 diopters
Solution:
To calculate the near point, we need to find the focal length of the lens which is given by:
Power, P = 
where
f = focal length
Thus
f = 
f =
= + 0.5 m
The near point of the eye is the point distant such that the image formed at this point can be seen clearly by the eye.
Now, by using lens maker formula:

where
u = object distance = 25 cm = 0.25 m = near point of a normal eye
u' = image distance
Now,



Solving the above eqn, we get:
u' = - 0.5 m = - 50 cm