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Physics
If a plane glass slab is placed on the letters of different colors, then
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Q. If a plane glass slab is placed on the letters of different colors, then
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A
all the letters appear to be raised up to the same height
B
violet colored letters appear to be more raised up
C
Red colored letters appear to be more raised up
D
none of these
Solution:
$N_{S}=t\left(1-\frac{1}{n}\right) $
$n_{R} < n_{v} $
$\therefore N_{S R} > N_{S V}$
$\therefore$ Red colored letters appear to be raised more.