Fill in the blanks with suitable words.
Water is optically denser than but optically rarer as compared to____.

Air

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Glass

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

A medium in which light travels faster is called an optically rarer medium.
On the other hand, a medium in which light travels slower is called an optically denser medium.
Optically rarer and denser media are relative terms.
For example, the speed of light in water is less than the speed of light in air.
It means that water is optically denser as compared to air.
But the speed of light in water is more than the speed of light in glass.
This means that water is optically rarer as compared to glass.
Thus, water is optically denser than air but optically rarer as compared to glass.

Suggest Corrections

Similar questions

Fill in the blanks :

(a) Water is optically ___ than air.

(b) Air is optically ___ than glass.

(d) When a ray of light travels from air to glass, it bends ___ the normal.

(e) When white light passes through a prism, it ___

(f) The splitting of white light into its constituent colours is called ___

(g) A ___ mirror is obtained on silvering the outer surface of a part of a hollow glass sphere.

(h) Radius of curvature of a spherical mirror is ___ its focal length.

(i) The angle of incidence for a ray of light passing through the centre of curvature of aspherical mirror is ___

(j) A ___ mirror always forms a virtual image.

(k) A concave mirror forms a virtual image for an object placed ___

Ans. (a) denser (b) rarer (c) away from (d) towards (e) disperses (f) dispersion

(g) concave (h) two times (i) $0^{\circ}$ (j) convex (k) between pole and focus

A monochromatic beam of light passes from an optically denser medium into an optically rarer medium. As a result, ____.

A ray of light moving from an optically rarer medium to a denser medium:

Join BYJU'S Learning Program