Chapter 8 : Applied Mathematics

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admin
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Chapter 8 : Applied Mathematics

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Be the first to discuss this chapter!
jfu.green
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Joined: Thu Jun 27, 2019 7:56 am

Q5 of Warm Up excercises

Post by jfu.green »

May someone please explain to me why is the answer A but not C?
Is it asking about the total distance travelled within the mirror before leaving it?

Thank you!
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sr_vineeth_ruveneco
Posts: 7
Joined: Thu Aug 29, 2013 4:04 pm

Re: Chapter 8 : Applied Mathematics

Post by sr_vineeth_ruveneco »

Hi jfu.green,

The circular mirror has a radius of 5, meaning that its diameter is 5 x 2 = 10.
Where the light begins at one edge of the mirror and travels through the center point to the other side, the total distance would have been 10. This fits with Answer Choice A. Hope this helps!
Brackwom
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Joined: Thu Jun 10, 2021 9:46 am

Re: Chapter 8 : Applied Mathematics

Post by Brackwom »

Yes, it helped. Thanks to offer such a helpful response, keep sharing more knowledgeable content.
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