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Alika [10]
3 years ago
8

What would an american flag look like if you viewed it through a filter that transmits only red light? what would it look like t

hrough a filter that transmits only blue light?
Physics
2 answers:
Law Incorporation [45]3 years ago
7 0

Answer:

The US flag has 3 colours, blue, red and white.

Now, first you need to remember that the white is a combination of all the colours, and black is the absense of all colours.

Only red lights:

The red in the flag is transmited, because the filter does not affect that colour.

The blue is absorved, so the blue parts will turn black

The white light is all absorved exept for the red contribution, so the white parts are red now.

Only blue light:

Simillar to before.

The blue parts are not affected.

The red parts are black now.

The white parts are blue now.

chubhunter [2.5K]3 years ago
3 0
Red: The red parts will stay the same
         The blue parts will turn black - there is no red in blue
         The white parts will turn red - there is red in white
Blue: The blue parts will stay the same
         The red parts will turn black - there is no blue in red
         The white parts will turn blue - there is blue in white
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A long, straight, vertical wire carries a current upward. due east of this wire, in what direction does the magnetic field point
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Americium-241 is used in smoke detectors. It undergoes alpha decay with a half life of 432 years. The alpha particles ionize som
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Answer:

860.6 years.

Explanation:

The parameters given are;

Initial detector activity = 370000 alpha decays per second

Final detector activity = 93000 alpha decays per second

Formula for time to change in activity is given by the following relation;

t_{93000} = \dfrac{-ln\dfrac{A}{A_0} }{\lambda} =  \dfrac{-ln\dfrac{93000}{370000} }{5.08 \times 10^{-11}} = 2.72 \times 10^{10} \, seconds

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