Question

the device used by sir Isaac Newton to produce specture of seven colours??​

Answer 1

Correct Question:

The device used by sir Isaac Newton to produce spectrum of seven colours.

(Answer in one word or sentence).

Answer:

The device used by sir Isaac Newton to produce spectrum of seven colours was a Prism.

___________________________

Additional Information:

Let's know briefly about this topic.

• When white light passes through an equilateral prism it splits into seven colours (VIBGYOR), this is called dispersion of light.

• The band of seven colours obtained by dispersion of light is called spectrum.

⭐Newton's experiment⭐

Sir Issac Newton was the first scientist who showed that if white light passed through a prism, it splits into different colours ( VIBGYOR, the colours of rainbow).

Newton passed narrow beam of sunlight through the prism. The light that was emerging from the prism was allowed to fall on the white screen. The light received was in the band of seven colours. The order of colours is violet, indigo, blue, green, yellow, orange and red.

⭐ His conclusion ⭐

From his experiment he concluded that white light is a mixture of seven colours. The prism doesn't produce colours, but it only separates the colours which already exist in white light.

He also said that if the seven colours recombined then white light will be produced.

He also proved this with the help of his experiment named as Newton's coloured disc.

___________________________

Answer 2

Glass Prism

It was an ordinary glass Prism used in the experiment of dispersion by Sir Isaac Newton. It was later seen that white light can be broke into 7 different colours of light. They are:-

1. Violet,
2. Indigo,
3. Blue,
4. Green,
5. Yellow,
6. Orange, and
7. Red.

Natural Phenomenon: Can be seen in rainbow.

After rain when water particles suspend in air and after rain, sun emerges we can see same results. Since sun rays are white in colour, get divided into 7 colours (see above) after passing through the droplets.