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3 years ago

I really need help like a lot I only got 2 days so I need help, and the answer has to be right, please!

Physics

2 answers:

koban [17]3 years ago

7 0

Answer:

1. Wave period = 0.962 s

2. Will absorb red and blue and reflect green

Explanation:

The wave period is:

$T = \frac{\lambda }{v} \\Where: \\T: Wave period \\ \lambda : Wavelength \\v: velocity$

Wavelength is the distance between crests. So replacing the given information:

$T = \frac{2.50}{2.60} = 0.962 s\\$

2. In simple words the color of an object is the light it reflects. A green object reflects green light, and the rest is absorbed (red and blue).

kotegsom [21]3 years ago

7 0

Answer:

1) Period of wave motion = T = 0.9615 s

2) Green object will absorb red (Long wavelength) and blue (short wavelength) and will reflect green.

Explanation:

First Part:

Distance between two crests = wavelength = λ = 2.50 m

Speed of the waves = v = 2.60 m/s

We know that,

v = f λ

v = λ/T

T = λ/v ……… (i)

By putting values in equation (i),

T = 2.50/2.60

T = 0.9615 s

Second part:

When an object absorbs red and blue colors, it appears green. Green object will always reflect green color making it appear green.

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The complete question is shown on the first uploaded image

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3 years ago

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