At what heights above ground do proximity fuzes typically produce airbursts?

Proximity fuzes are designed to detonate munitions at a specific height above the ground to maximize their effectiveness against targets. These fuzes typically produce airbursts within a certain altitude range where the explosive effects can cover a broader area, inflicting damage on both personnel and equipment.

The range of 20 to 125 feet is aligned with standard military applications wherein the effectiveness of airburst munitions is optimal for various types of missions, including engaging enemy troops or equipment in the open. Detonating within this height range allows the explosion to create a wider dispersal pattern of fragmentation, thus enhancing lethality.

In contrast, the other options suggest height ranges that either fall below or exceed the established operational parameters for effective airburst detonation. Lower heights may not achieve the intended dispersal effect, while exceeding the upper limit could result in inefficient use of the munition. Therefore, the specified range of 20 to 125 feet accurately reflects the operational criteria for proximity fuzes in producing effective airbursts.