Question

Assertion : The height of an object is always considered positive.

Reason : An object is always placed above the principal axis in this upward direction.

Answer 1

Answer:

yes Assertion : The height of an object is always considered positive

Answer 2

Both Assertion and the Reason are correct and Reason is the correct explanation of the assertion.

• According to the mirror/lens sign convention, the height of an object is always taken as positive.
• Because the object is always placed above the principal axis in the upright position.
• And, as per the sign convention, if an object or image is above the principal axis then the height of that object and image is taken as positive.
• If the image is formed below the principal axis, its height is considered negative.
• Usually,  the object is always placed above the principal axis therefore its height is always taken as positive.