Answer:
560nm
Explanation:
You can use the following expression for thin films:
where n is the index of refraction, d is the thicknes of the thin film and m is the order of the diffraction pattern. For keratin layers we can use n=1.40. For the longest wavelenth we use m =1.
Hence, we obtain:
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Answer:
1 x 10¹⁸cm
Explanation:
Given parameters:
Velocity of light = 300,000,000cm/s
Unknown:
Distance in centimeters = ?
Solution:
To solve this problem,
The velocity of light is 3 x 10⁸m/s
Velocity =
Distance = velocity x time = 3 x 10⁸m/s x 3.2 x 10⁷s
= 9.6 x 10¹⁵m
To cm;
100cm = 1m
Distance = 9.6 x 10¹⁵ x 10² = 9.6 x 10¹⁷cm = 1 x 10¹⁸cm
The melting of an ice cube is considered a physical change.
my answer is round. or a circle. if thats not right i can help you if you have multiple choice answers
Answer:
Concave lenses are used in eyeglasses that correct myopia or nearsightedness.