Advertisements
Advertisements
प्रश्न
A ray of light moving from an optically rarer to a denser medium
विकल्प
bends away from the normal
bends towards the normal
remains undeviated
none of the above
Advertisements
उत्तर
bends towards the normal
APPEARS IN
संबंधित प्रश्न
In the following diagram the correctly marked angles are :
(a) ∠A and ∠e
(b) ∠i, ∠A and ∠D
(c) ∠A ∠r and ∠e
(b) ∠A ∠r and ∠D
Draw a diagram to show the refraction of light through a glass prism. On this diagram, mark
(i) incident ray
(ii) emergent ray, and
(iii) angle of deviation.
The coloured light having the maximum speed in glass prism is ______.
Which of the following colour of white light has the least wavelength?
(a) red
(b) orange
(c) violet
(d) blue
How does the speed of light determine the optical density of a medium?
When a white light ray falls on a prism, the ray at its first surface suffers ______.
Draw a labelled diagram: Dispersion of light through a prism.
Write three conditions necessary to obtain a pure spectrum on a screen. Name the instrument in which the conditions stated by you are fulfilled.
Write an Explanation.
Critical angle
The dispersive powers of flint glass and crown glass are 0.053 and 0.034, respectively and their mean refractive indices are 1.68 and 1.53 for white light. Calculate the angle of the flint glass prism required to form an achromatic combination with a crown glass prism of refracting angle 4°:
