Consider statement or the figure given below:

Question

Read the passage carefully and answer the following questions from (i) to (v).

Splitting of white light into its seven constituent colours when passed through a glass prism is known as dispersion. All the colours travel at the same speed when they travel in vacuum. But when they pass through a medium, such as a glass prism, the colours bend or refract at different angles, and therefore the speed changes. Red colour bends the least and violet deviates the most.

(iii) Consider statements $S ₁ a n d S ₂$ for the figure given below:

$S ₁ :$ The ray of light which emerges out of Prism F will be white light.

$S ₂ :$ The refraction produced by the prism F is equal and opposite to that of Prism E.

Smart Achievers · Accepted Answer

(1)

Solution

1 Both $S ₁ a n d S ₂$ are true and $S ₂$ is the correct explanation of $S ₁$

2 Both $S ₁ a n d S ₂$ are true but $S ₂$ is not the correct explanation of $S ₁$

3 $S ₁ i s t r u e b u t S ₂ i s f a l s e$

4 $S ₂ i s t r u e b u t S ₁ i s f a l s e$

Ans.
(1)

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Solution

1 Both S₁ and S₂ are true and S₂ is the correct explanation of S₁

2 Both S₁ and S₂ are true but S₂ is not the correct explanation of S₁

3 S₁ is true but S₂ is false

4 S₂ is true but S₁ is false