Point charge - Assertion & Reason type problem

[Jahnavi]

Homework Statement

Homework Equations

The Attempt at a Solution

These AR type problems are mostly tricky and debatable . To me, A is correct and R is wrong . Although electron is approximated to be a point particle , but I think if R is true , then A will be wrong .

I think c) is correct . I might be wrong .

I would like to know experts view on this .

 

[haruspex]

I'd go for c, but the form of the assertion is a bit unusual. The assertion is not "a point charge is impossible"; rather, it is in itself a line of reasoning, that "since matter..." etc. So if that reasoning is faulty, would we say A is false even though we may agree that a point charge is not possible?

 

[Chandra Prayaga]

I am not sure I understand the question. Are we trying to pick out a correct proposition out of the 5 choices? (a) to (d) are not propositions at all. They contain only the "if" part, with no "then". The only complete proposition is (e).

 

[haruspex]

I am not sure I understand the question. Are we trying to pick out a correct proposition out of the 5 choices? (a) to (d) are not propositions at all. They contain only the "if" part, with no "then". The only complete proposition is (e).

In the lower box, the A is an assertion, which may be true or false; the R is a supposed justification for the assertion. The R may be true or false in itself, and it might or might be reasonable to deduce A from R.
The task is to determine which combination of those possibilities applies, as listed in a to e.