(A) : Dipole oscillations produce electro­magnetic waves. (R) : Accelerated charge produces electro­magnetic waves.

Options

A. Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.
B. Both 'A' and ’R' are true and 'R' is not the correct explanation of 'A
C. A' is true and 'R' is false
D. 'A' is false and R' is true

Answer

To solve the question, we need to analyze the two statements provided: the assertion (A) and the reason (R).

### Step 1: Understand the Assertion
The assertion states that "Dipole oscillations produce electromagnetic waves."
- An electric dipole consists of two equal and opposite charges separated by a small distance. When these charges oscillate, they create a changing electric field, which in turn produces a changing magnetic field. According to Maxwell's equations, a changing electric field generates a magnetic field and vice versa, leading to the production of electromagnetic waves.

### Step 2: Understand the Reason
The reason states that "Accelerated charge produces electromagnetic waves."
- According to classical electromagnetism, specifically Maxwell's equations, any charge that is accelerated (i.e., its velocity changes) emits electromagnetic radiation. This is because the acceleration of the charge leads to changes in the electric and magnetic fields around it, resulting in the generation of electromagnetic waves.

### Step 3: Evaluate the Truth of Both Statements
- Both the assertion and the reason are true.
- The assertion is true because dipole oscillations indeed lead to the production of electromagnetic waves.
- The reason is also true because accelerated charges produce electromagnetic waves as per Maxwell's theory.

### Step 4: Determine the Relationship Between A and R
- The reason (R) correctly explains the assertion (A). The oscillation of a dipole involves the acceleration of charges, which leads to the production of electromagnetic waves.

### Conclusion
Both the assertion and the reason are true, and the reason is the correct explanation for the assertion. Therefore, the answer is option one: both A and R are true, and R is the correct explanation of A.

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