Assertion `:` All the materials always have the same colour, whether viewed by reflected light or through transmitted light.
Reason `:` The colour of material does not depend on nature of light .

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 assertion and reason question, we need to analyze both statements carefully.

### Step 1: Analyze the Assertion
The assertion states: "All the materials always have the same color, whether viewed by reflected light or through transmitted light."

- This statement is incorrect. The color of an object can change depending on the type of light it is viewed under. For example, a brown sofa will appear brown under white light but may look different under red light, as it reflects only certain wavelengths of light.

**Hint:** Consider how different light sources can affect the perceived color of an object.

### Step 2: Analyze the Reason
The reason states: "The color of material does not depend on the nature of light."

- This statement is also incorrect. The perceived color of a material does depend on the nature of the light illuminating it. Different light sources (like sunlight, incandescent bulbs, or colored LEDs) can cause materials to appear different colors due to the wavelengths of light they emit.

**Hint:** Think about how colors are perceived and how they can change with different lighting conditions.

### Step 3: Conclusion
Since both the assertion and the reason are false, we can conclude that:

- The correct answer is that both the assertion and reason are false.

**Final Answer:** Both assertion and reason are false.