SSC (Marathi Semi-English) 10thMaharashtra State Board
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# Explain How Spectrum is Formed. - SSC (Marathi Semi-English) 10th - Science and Technology - 1

ConceptRefraction of Light Refraction of Light Through a Glass Block and a Triangular Prism

#### Question

Explain how spectrum is formed.

#### Solution

When white light passes through a glass prism, it spreads out into a band of different colours called the spectrum of light.

• When white light is dispersed into seven colours by a glass prism, different colours bend through different angles with respect to the incident ray.

• The sequence of colours given by the prism is Violet, Indigo, Blue, Green, Yellow, Orange and Red.
•  Of the seven colours, red light bends the least, while violet light bends the most. So, the rays of each colour emerge along different paths and appear distinct. Hence, we get a spectrum of seven different colours.

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#### APPEARS IN

2015-2016 (March) (with solutions)
Question 3.5 | 3.00 marks
Solution Explain How Spectrum is Formed. Concept: Refraction of Light - Refraction of Light Through a Glass Block and a Triangular Prism.
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