is there a lower limit on the size of a nuclear bomb?

Question

And if so, what factors determine it?

I know that the scale of the explosion is an insane amount larger than the teeny molecules causing it, but I’m wondering if there could ever be nuclear explosions small enough to take out a single house or block, rather than a whole city from high above.

In: Physics

Answer 1

Technically no limit, as you can just make a really inefficient bomb, but for a house sized target, you’d just use normal high explosives and have a cheaper bomb.