What sign (+ve or −ve) has been given to the following on the basis of Cartesian Sigh Convention?

(a) Height of a real image.
(b) Height of a virtual image.

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Solution

(a) A negative sign has been given to the height of a real image.
(Because a real image is formed below the principal axis, it's given a negative sign).

(b) A positive sign is given to the height of a virtual image.
(Because a virtual image is formed above the principal axis, it's given a positive sign).

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What sign (+ve or -ve) has been given to the following on the basis of Cartesian Sign Convention ? (a) Height of a real image. (b) Height of a virtual image.

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What sign (+ve or −ve) has been given to the following on the basis of Cartesian Sigh Convention? (a) Height of a real image. (b) Height of a virtual image.

What sign (+ve or −ve) has been given to the following on the basis of Cartesian Sigh Convention?

(a) Height of a real image.
(b) Height of a virtual image.