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प्रश्न
State the relation between the refractive index μ and the velocity of light (vm) in that medium.
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उत्तर
`μ="Velocity of light in a vacuum (or air)"/"Velocity of light in the medium"="C"/"v"_"m"`
`"v"_"m"="C"/μ`
संबंधित प्रश्न
When a ray of light travels from air to glass slab and strikes the surface of separation at 90°, then it …………….
(a) bends towards normal
(b) bends away from normal
(c) passes unbent
(d) passes in zigzag way
A student traces the path of a ray of light passing through a rectangular glass slab and marks the angle of incidence i, angle of refraction r and angle of emergence e, as shown.
The correctly marked angle(s) is/are
(A) ∠ i only
(B) ∠ e only
(C) ∠ r only
(D) ∠ i and ∠ e
Name a prism required for obtaining a spectrum of Ultraviolet light.
With the help of diagram of the principal section of a prism, indicate its refracting surfaces, refracting edge and base.
Fill in the blanks to complete the following sentence
The refractive index of glass with respect to air is 3/2. The refractive index of air with respect to glass will be ……………….
Select from the following the best set-up for tracing the path of a ray of light through a rectangular glass slab:
(A) I
(B) II
(C) III
(D) IV
A ray of light falls normally on the surface of a transparent glass slab. Draw a ray diagram to show its path and also mark angle of incidence and angle of emergence.
Does the depth of a tank of water appear to change or remain the same when viewed normally from above?
The refractive index of air with respect to glass is defined: as gµa = sin i/sin r
Write down a similar expression for aµg in terms of angle i and r.
