A glass block of thickness 10cm is placed on an object. If an observer views the object vertically, the displacement of the object is
a
3.33cm
b
5.00cm
c
6.67cm
d
8.50cm
Explanation
Correct Option
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Discussions (16)

s.samuel
3 years ago
Refractive index of glass is always 1.50, of water is 1.33 if it is not given, always remember that..... Thank you

Messi333333
4 years ago
Using displacement = real depth - apparent depth
n = real depth/ apparent depth
Refractive index for glass = 1.50
1.50 = 10/app. depth
App. depth = 10/1.5 = 6.67cm
.: The displacement = 10 - 6.67 = 3.33cm

Tim234D
1 year ago
To further support what sss said, in physics memorize the following:
Refractive index of glass = 1.5
Refractive index of water = 4/3 or 1.333
sin 45 = cos 45 = 0.7071
sin 60 = cos 30 = 0.8660
Specific heat capacity of water = 4200Jkg-1K-1




