Advertisements
Advertisements
प्रश्न
Which is optically denser: water or air? Give reason
Advertisements
उत्तर
Denser medium are those in which speed of light gets reduced when light travels through that medium.
when light travels through water or glass it's speed get reduced hence they are optically denser medium.
WATER is optically DENSER as the speed of light is less in water than in air.
2.25 × 108 ms-1 < 3 × 108 ms-1
speed of light in Water < speed of light in Air.
APPEARS IN
संबंधित प्रश्न
Fill in the blank with suitable word:
When a ray of light enters a prism, it bends ................ the normal ; as it leaves the prism, it bends ................. the normal.
What is a rainbow? What are the two conditions necessary for the formation of a rainbow in the sky?
The splitting up of white light into seven colours on passing through a glass prism is called:
(a) refraction
(b) deflection
(c) dispersion
(d) scattering
In an experiment to trace the path of a ray of light through a triangular glass prism, a student would observe that the emergent ray
(a) is parallel to the incident ray.
(b) is along the same direction of incident ray.
(c) gets deviated and bends towards the thinner part of the prism.
(d) gets deviated and bends towards the thicker part (base) of the prism.
The phenomenon of splitting of light into its component colours is ___________ .
Draw a labelled diagram: Dispersion of light through a prism.
What do you understand by spectrum? Name the seven prominent colours in order, as obtained in the spectrum of white light.
Observe the given figure and write appropriate phenomenon of light in the box.
The phenomena of light involved in the formation of rainbow are ______.
______ colour is deviated the least in the spectrum of white light obtained with a glass prism.
