Question

secondary sources of light send secondary waves in ______​

Answer 1

Answer:

s wave

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Answer 2

Answer:

Every point on a wavefront acts as though it were a secondary source of light, emitting secondary waves in every direction. The new secondary wavelets are only more efficient while moving forward. The new wavefront at a particular instant is supplied by the envelope (tangent) of all secondary wavelets moving forward at that time.

Explanation:

Light (or rays of light) travel in a direction that is perpendicular to the wavefront. Every point on the given wavefront acts as a source of a new disturbance called the secondary wavelet which moves in all directions with the velocity of light in the medium.

wave theory of light

In the field of physical optics, diffraction, polarisation, interference, and other phenomena are studied. whose geometrical optics does not provide a net effect. And it displays the light waveform. They are also known as wave optics for this reason.

Light is a type of energy, and when light reflects off of anything and reaches our eyes, it is because of this reflection phenomenon that the thing becomes visible to us. This phenomenon happens because it causes a visual sense when it enters our retina, which makes the thing visible to us.

Huygens' wave theory

Theory of Huygens' Waves

Huygens, a physicist from Holland, introduced the wave theory of light in 1678. According to Huygens, waves are how light moves through space. These waves radiate out from the light source and move in all directions at the speed of light. Huygens imagined an all-encompassing substance called ether because waves need a medium to travel through.

It was supposed that this hypothetical medium was both weightless and able to penetrate all matter. It possesses every attribute required for the transmission of light waves. For instance, light moves at a speed of 3 x 108 metres per second. It follows that an extremely low density for the medium ether is expected.

Wavefront

The wavefront is the point route of the medium's vibrating particles that are experiencing the same phase at a specific time. There are three different types of wavefronts depending on the form of the light source:

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