Assertion: Magnification of convex mirror is always less than one .
Reason: The focal length of convex mirror is always positive.
A) Both assertion and reason are correct and reason is the correct explanation of assertion.
B) Both assertion and reason are correct but reason is not correct explanation of assertion.
C) Assertion is correct and reason is false.
D) Assertion is false and reason is correct.
Answers
Answer:
Both assertion and reason are correct and reason is the correct explanation of assertion.
Explanation:
The sign of magnification depend on the sign convention chosen. According to the new Cartesian sign conventions, magnification for a convex mirror is positive because image formed by a convex mirror is always virtual and erect. A concave mirror can form virtual or erect images and also real, inverted images. In the latter case, its magnification becomes negative. The reason though correct does not explain the assertion properly.
Answer:
Assertion: Magnification of convex mirror is always less than one .
Reason: The focal length of convex mirror is always positive.
A) Both assertion and reason are correct and reason is the correct explanation of assertion.
B) Both assertion and reason are correct but reason is not correct explanation of assertion.
C) Assertion is correct and reason is false.
D) Assertion is false and reason is correct