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DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 When a narrow beam of white light (sunlight or torch light) is passed through a triangular glass prism, it splits into a band of seven colours. The seven colours are in order violet, indigo, blue, green, yellow, orange and red. The red colour is deviated the least while the violet colour is deviated the most. The colour sequence can be remembered by the acronym VIBGYOR. Dispersion of white light into seven colours the phenomenon of splitting of white light into its component colours on passing through a refracting medium such as a glass prism is called dispersion of light. The pattern of the colored bands obtained on the screen is called spectrum. A spectrum is obtained by sending a beam of white light through a prism. A second prism exactly similar to the first one is placed in an inverted position with the sides parallel to the first. Now:

A) a new spectrum will be formed on the screen with double the number of colours present in the previous spectrum

B) new spectrum will be obtained on the screen with only half the number of colours present in the previous spectrum

C) previous spectrum will disappear and we will obtain a white light formed by the fusion of the colours

D) a spectrum with same number of colours present in the previous spectrum will be formed but their wave lengths will be increased twice