Physics
An object when placed in a denser medium and is viewed from a rarer medium appears to be at a lesser depth than real death. This is because of :
- reflection
- refraction
- dispersion
- diffraction
Refraction Plane Surfaces
14 Likes
Answer
refraction
Reason — When the light from an object placed at a depth OA in water enters the air, the light bends away from the normal due to refraction. So when this light ray enters our eyes, the eyes will see the object originally situated at the depth OA at an apparent depth IA since the eyes always traces out the linear path taken by light into the water, it does not take into account that the light was refracted at the surface. So this apparent shift in depth makes us believe that the object in denser medium has been raised for an observer in a rarer medium.
Answered By
9 Likes
Related Questions
A ray of light incident at an angle of incidence 48° on a prism of refracting angle 60° suffers minimum deviation. Calculate the angle of minimum deviation. [ Hint — δmin = 2i - A ]
What should be the angle of incidence for a ray of light which suffers minimum deviation of 36° through an equilateral prism?[ Hint — A = 60° and i = ( A + δmin ) / 2 ]
Refractive index of a liquid can be found using :
- μ = real depth x apparent depth
- μ = apparent depth/real depth
- μ = real depth/apparent depth
- none of the above
A small air bubble in a glass block when seen from above appears to be raised because of:
- refraction of light
- reflection of light
- reflection and refraction of light
- none of the above