Question

Given below are two statements:
Assertion (A): The laws of Physics all take the same identical form for all frames of reference in uniform relative motion, for all inertial frame of references.
Reason (R): This is due to absence of an absolute or fixed frame of reference.

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

In relativity, no inertial frame is absolute; all inertial frames are equivalent for physical laws.

Answer 1

The Correct Option is A

Concept:
The principle of relativity states that the laws of physics are the same in all inertial frames of reference.

Step 1: Check Assertion.
The assertion says that laws of physics have the same form in all inertial frames moving uniformly relative to one another. This is the principle of relativity. \[ A \text{ is correct} \]

Step 2: Check Reason.
There is no absolute fixed frame of reference. Motion is always described relative to a chosen frame. \[ R \text{ is correct} \]

Step 3: Check explanation.
Because no inertial frame is absolutely preferred, laws of physics must have the same form in all inertial frames. \[ R \text{ correctly explains } A \] \[ \therefore \text{Correct Answer is (A)} \]