Einstein was awarded Nobel prize for

Options

A. Special theory of relativity
B. General theory of relativity
C. Photo electric effect
D. for developing tensors.

Answer

To solve the question regarding why Einstein was awarded the Nobel Prize, we can follow these steps:

### Step 1: Understand the Common Misconception
Many people believe that Einstein received the Nobel Prize for his Theory of Relativity, which is one of his most famous contributions to physics. However, this is not the case.

**Hint:** Consider what other significant contributions Einstein made to physics besides the Theory of Relativity.

### Step 2: Identify the Correct Contribution
In 1921, Einstein was awarded the Nobel Prize in Physics specifically for his explanation of the photoelectric effect. This phenomenon describes how light can eject electrons from a material, which was crucial in the development of quantum theory.

**Hint:** Think about the implications of the photoelectric effect in the context of light and electrons.

### Step 3: Confirm the Year and Context
The Nobel Prize was awarded to Einstein in the year 1921, and it recognized his work that laid the foundation for modern physics, particularly quantum mechanics.

**Hint:** Remember that the Nobel Prize is awarded for specific contributions, and knowing the year can help clarify the context of the award.

### Step 4: Conclusion
Thus, the correct answer to the question is that Einstein was awarded the Nobel Prize for the photoelectric effect, not for his Theory of Relativity.

**Hint:** Summarize the key points: the misconception, the correct contribution, and the significance of that contribution to physics.

### Final Answer
Einstein was awarded the Nobel Prize in Physics in 1921 for his explanation of the photoelectric effect.