Assertion (A): | If two converging lenses are introduced into the path of a parallel beam of light, the emerging beam cannot be diverging. |
Reason (R): | The converging lenses have positive powers. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | (A) is false but (R) is true. |
1. | \(2~\text{cm}\) | 2. | \(20~\text{cm}\) |
3. | \(115~\text{cm}\) | 4. | \(230~\text{cm}\) |