plz tell this question . answer is 66.7%
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Crazy1412:
check the ans it should be 33.33%
The answer given is 66.7%
aman has said this
its wrong
https://mycbseguide.com/dashboard/content/10232
go to this website and check Q no. 5 solution
okay thanks bro
bye
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n= speed of light in vaccum (c)/
speed of light in benzene(v)
∴v= 3× 10^ 8/ 1.50 m/s
=2× 10^ 8 m/s
% decrease = (3−2)× 10^ 8 / 3× 10^8 ×100%
= 33.33 %
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