What is rectilinear propagation of light? Explain ray of light and beam of light.
(N/A) The wavelength of light is very small compared to the size of ordinary objects. Due to this,light travels from one point to another along a straight line path. This phenomenon is known as the rectilinear propagation of light.
$A$ ray of light is defined as a line representing the path along which light energy travels. It is represented by a straight line with an arrowhead indicating the direction of propagation.
$A$ beam of light is a bundle or collection of a large number of light rays traveling together in a particular direction.
$A$ ray of light is defined as a line representing the path along which light energy travels. It is represented by a straight line with an arrowhead indicating the direction of propagation.
$A$ beam of light is a bundle or collection of a large number of light rays traveling together in a particular direction.
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To find the focal length of a convex mirror,a student records the following data:
Object Pin Convex Lens Convex Mirror Image Pin $22.2 \, cm$ $32.2 \, cm$ $45.8 \, cm$ $71.2 \, cm$
The focal length of the convex lens is $f_1$ and that of the mirror is $f_2$. Taking index correction to be negligibly small,$f_1$ and $f_2$ are close to:
| Object Pin | Convex Lens | Convex Mirror | Image Pin |
|---|---|---|---|
| $22.2 \, cm$ | $32.2 \, cm$ | $45.8 \, cm$ | $71.2 \, cm$ |
The focal length of the convex lens is $f_1$ and that of the mirror is $f_2$. Taking index correction to be negligibly small,$f_1$ and $f_2$ are close to:
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