Statement-1: The centre of mass of body may lie where there is no mass.
Statement-2: Centre of mass of a body is a point, where the whole mass of the body is supposed to be concentrated.

Options

A. Both statement-1 and 2 are true and statement-2 is the correct explanation of statement -1.
B. Both statement-1 and 2 are true but satatement-2 is not correct explanation of statement -1.
C. Statement-1 is true but statement-2 is false
D. Both statement 1 and 2 are false.

Answer

To solve the given problem, we need to analyze both statements about the center of mass and determine their validity and relationship.

### Step-by-Step Solution:

1. **Understanding Statement 1**:
- Statement 1 claims that the center of mass of a body may lie where there is no mass.
- This can be illustrated with an example of a hollow ring. The mass of the ring is distributed along its circumference, but the center of the ring (the center of mass) is at the center point, which has no mass.
- Therefore, Statement 1 is **correct**.

2. **Understanding Statement 2**:
- Statement 2 states that the center of mass of a body is a point where the whole mass of the body is supposed to be concentrated.
- This is a fundamental definition of the center of mass. For example, in a uniform solid block, we can consider the entire mass to be concentrated at its geometric center for analysis.
- Thus, Statement 2 is also **correct**.

3. **Analyzing the Relationship Between the Statements**:
- While both statements are correct, Statement 1 does not require an explanation from Statement 2. Statement 1 stands independently as it discusses the possibility of the center of mass being at a point without mass, while Statement 2 defines the center of mass conceptually.
- Therefore, Statement 2 is not the correct explanation of Statement 1.

4. **Conclusion**:
- Both statements are correct, but Statement 2 does not explain Statement 1. Hence, the answer is that Statement 1 is correct, Statement 2 is correct, but Statement 2 is not the correct explanation for Statement 1.

### Final Answer:
- Statement 1 is correct.
- Statement 2 is correct.
- Statement 2 is not the correct explanation of Statement 1.