Why does light refract when it encounters the glass in a lens?
a)
because it speeds up, which causes it to bend
b)
because it slows down, which causes it to bend
c)
because it hits a dense medium, which causes it to bounce off
d)
because it gets absorbed, which causes it to lessen in intensity
Answers: 2
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The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.
Answers: 3
Why does light refract when it encounters the glass in a lens?
a)
because it speeds up...
a)
because it speeds up...
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