Question

Assertion (A): Semaphore is a method of communication when ships are within visual range.
Reason (R): Flags are used for communication in semaphore, instead of phonetic alphabets or morse code.

• A. Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

Semaphore is an essential naval skill. It is immune to electronic jamming and radio interception, making it highly valuable during "Radio Silence" conditions when ships are sailing in close formation.

Answer 1

The Correct Option is B

Step 1: Evaluating the Assertion (A):
Semaphore is a visual signaling system where a sailor holds two hand-flags in specific positions to represent letters of the alphabet. Because it relies entirely on the naked eye (or binoculars) to read the arm positions, it can only be used when ships are relatively close to each other (within visual range). Therefore, the assertion is True.

Step 2: Evaluating the Reason (R):
The mechanics of semaphore do indeed use flags (hand-held) arranged at different angles to communicate, rather than sending electrical morse code dots/dashes or speaking phonetic alphabets over a radio. Therefore, the reason is also True.

Step 3: Determining the Logical Link:
Does the fact that "flags are used instead of morse code" (R) explain why it is used when ships are in visual range (A)? Not entirely. The primary reason semaphore is chosen when ships are in visual range is to maintain radio silence (tactical stealth) or to quickly pass localized tactical signals without congesting radio nets. The fact that it uses flags is a description of its methodology, not the overarching tactical explanation for its visual-range application. Therefore, while both statements are true facts about semaphore, (R) is not the precise tactical explanation of (A). This makes option (B) the best fit.