Advertisements
Advertisements
प्रश्न
A coin is places at the bottom of a beaker containing water (refractive index = 4/3) to a depth of 12 cm. By what height the coin appears to be raised when seen from vertically above?
Advertisements
उत्तर
Refractive index of the water, 𝛍w = 4/3
Real depth at which the coin is places = 12 cm
Shift in the image = ?
Shift = `"real depth"xx(1-1/µ)`
Shift= `12(1-3/4)`
R=12/4=3 cm
संबंधित प्रश्न
Explain how the formation of a rainbow occurs.
A student very cautiously traces the path of a ray through a glass slab for different values of the angle of incidence (∠i). He then measures the corresponding values of the angle of refraction (∠r) and the angle of emergence (∠e) for every value of the angle of incidence. On analysing these measurements of angles, his conclusion would be
(A) ∠i > ∠r > ∠e
(B) ∠i = ∠e > ∠r
(C) ∠i < ∠r < ∠e
(D) ∠i = ∠e < ∠r
The highest refractive index is of ______.
Which of the following is the best experimental set-up out of the four shown for tracing the path of a ray of light passing through a rectangular glass slab ?
A total reflecting equilateral prism can be used to deviate a ray of light through:
Write a relation between the angle of incidence (i), angle of emergence (e), angle of the prism (A), and angle of deviation (d) for a ray of light passing through an equilateral prism.
You are provided with a printed piece of paper. Using this paper how will you differentiate between a convex lens and a concave lens?
Explain with the help of a diagram of how fish is able to see the objects above it.
A coin placed at the bottom of a beaker appears to be raised by 4.0 cm. If the refractive index of water is 4/3, find the depth of the water in the beaker.
Observe the figure and name the ray AB, ray CD, ray GH.
