Arrange the following in order of decreasing reality (broadest to narrowest). Choose the correct answer from the options given below.

1.Physics

2.Natural science

3.Science

4.Nuclear physics

A3, 2, 1, 4 ✓ Correct

B2, 3, 1, 4

C4, 1, 2, 3

D2, 3, 4, 1

Correct answer: (A) 3, 2, 1, 4

Explanation

In decreasing breadth the order is Science, Natural science, Physics, Nuclear physics.

Science is the widest field, covering every systematic body of knowledge.

Natural science is a narrower branch inside science.

Physics is a single natural science lying within it.

Nuclear physics is the narrowest, a specialised part of physics.

Moving from the most general realm to the most specialised gives science down to nuclear physics.

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