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A ray of light enters into …

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A ray of light enters into benze from air. If the refraction index of benze is 1.50,by what percent does the speed of light reduce on entering the benze

Posted by Sumit Kumar Pandey 6 years, 10 months ago

CBSE > Class 10 > Science

2 answers

Gaurav Seth 6 years, 10 months ago

Let c be speed of light in vaccum and v be speed of light in benzene.

Refractive index of benzene=1.5=speed of light in vaccum/speed of light in benzene.

c/v=1.5
v=2/3c

Percentage reduce in speed of light

=(c-v/c)*100

=(1/3)*100=33.33%

0Thank You

M. Previlika 6 years, 10 months ago

How does fuse wire protect electrical appliances

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CBSE > Class 10 > Science