Question

Assertion (A) Most of the space in the atoms is empty.
Reason (R) Most of the $\alpha$-particles passed through the foil remain undeflected.

• A. Both $A$ and $R$ are correct; $R$ is the correct explanation of $A$.
• B. Both $A$ and $R$ are correct; $R$ is not the correct explanation of $A$.
• C. $A$ is correct; $R$ is incorrect.
• D. $A$ is incorrect; $R$ is correct.

Answer 1

Answer: (A)

Most of the $\alpha$-particles passed through the foil remain undeflected as most of the space in the atoms is empty.
Thus, both $A$ and $R$ are correct and $R$ is the correct explanation of $A$.