Question

$\huge\bigstar\underline\mathfrak{Question:-}$
1)Difference between shadow and image.
2) define :-
= luminous objects
=rectilinear propagation ___________________________
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Answer 1

Answer:

Objects that can emit light energy by themselves are known as luminous objects. ... The luminous objects are visible as they emit light on their own. The non-luminous objects are visible because of luminous objects. The sun and candle are the two examples. The moon and plants are the two examples.

The Rectilinear Propagation of Light describes that Light travels in a Straight Line. A mirror changes the direction of Light that falls on it and it travels in a Straight line Path. Reflection of Light occurs when light bounces off a polished surface.

Answer 2

1]

★Difference between a shadow and image:-

$\sf\red{Shadow:-}$

A shadow is formed when light is blocked by an opaque object.

A shadow depicts only the outline of the object.

A shadow does not show Lateral inversion of the object.

Shadows have no colour. They are black or grey.

$\sf\red{Image:-}$

An image is formed by the reflection of light.

An image is an exact replica of the object in all detail.

An image shows Lateral inversion or left right reversal of the object.

An image is of the same colour as the object.

_________________________

[2]

★Define the following terms:-

1. Luminous objects :- objects which emit light on their own are called as luminous objects.

2. Rectilinear propagation :- The phenomenon of light travelling in a straight line is called as rectilinear propagation.

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