Assertion : Bluish colour predominates in a clear sky, since blue has a shorter wavelength and is scattered strongly.
Reason : Blue has the shortest wavelength among all colours.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true and reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Explanation

To solve the question, we need to analyze both the assertion and the reason provided.

### Step 1: Understand the Assertion
The assertion states that the bluish color predominates in a clear sky because blue light has a shorter wavelength and is scattered strongly. This is based on the phenomenon of Rayleigh scattering, which explains why the sky appears blue.

### Step 2: Analyze the Reason
The reason given is that blue has the shortest wavelength among all colors. However, this is incorrect. In the visible spectrum, violet light has the shortest wavelength, followed by blue, green, yellow, orange, and red.

### Step 3: Relate the Assertion and Reason
While the assertion is true (the sky appears blue due to Rayleigh scattering), the reason is false because blue does not have the shortest wavelength; violet does.

### Step 4: Conclusion
Since the assertion is true and the reason is false, we conclude that the correct relationship between the assertion and reason is that the assertion is correct, but the reason is incorrect.

### Final Answer
The assertion is true, but the reason is false.