An object in a denser medium when viewed from a rarer medium appears to be raised. The shift is maximum for :

Options

A. red light
B. violet light
C. yellow light
D. green light

Answer

To solve the question regarding the apparent shift of an object in a denser medium when viewed from a rarer medium, we will follow these steps:

### Step 1: Understand the Concept of Refraction
Refraction occurs when light passes from one medium to another and changes speed, causing the light to bend. The degree of bending depends on the refractive indices of the two media involved.

**Hint:** Remember that the refractive index is a measure of how much light slows down in a medium compared to air.

### Step 2: Analyze the Shift of the Object
When an object is submerged in a denser medium (like water) and viewed from a rarer medium (like air), it appears to be raised. This apparent shift is due to the bending of light rays as they exit the denser medium.

**Hint:** Consider how the angle of incidence and the angle of refraction relate to the refractive indices of the two media.

### Step 3: Relate Shift to Wavelength
The amount of shift experienced by the object is influenced by the wavelength of the light used. Different colors of light have different wavelengths, and thus different refractive indices in a medium.

**Hint:** Recall that shorter wavelengths (like violet light) generally have higher refractive indices than longer wavelengths (like red light).

### Step 4: Identify the Color with Maximum Shift
Since the shift is directly proportional to the refractive index, and violet light has the highest refractive index among the options given (red, violet, yellow, and green), it will experience the maximum shift.

**Hint:** Compare the refractive indices of the different colors of light to determine which one has the highest value.

### Step 5: Conclude the Answer
Based on the analysis, the correct answer is that the shift is maximum for violet light.

**Final Answer:** The shift is maximum for **violet light**.

### Summary of Steps:
1. Understand refraction.
2. Analyze the shift of the object.
3. Relate shift to the wavelength of light.
4. Identify the color with maximum shift.
5. Conclude the answer.