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Chapter 8 : Applied Mathematics

Posted: Fri Mar 28, 2014 3:30 pm
by admin
Be the first to discuss this chapter!

Q5 of Warm Up excercises

Posted: Fri Aug 23, 2019 12:17 am
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!

Re: Chapter 8 : Applied Mathematics

Posted: Mon Aug 26, 2019 6:56 pm
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!

Re: Chapter 8 : Applied Mathematics

Posted: Sat Jun 12, 2021 3:55 am
by Brackwom
Yes, it helped. Thanks to offer such a helpful response, keep sharing more knowledgeable content.