For a convex mirror :

u is always negative

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v is always positive

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f is always negative

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f is always positive

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Solution

The correct options are
A
u is always negative

B
v is always positive

C
f is always negative

For a convex mirror, u has to be negative always. Since the image is always virtual for real objects, v is always positive and same is true for f.

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For a convex mirror :

The correct options are A u is always negative B v is always positive C f is always negative For a convex mirror, u has to be negative always. Since the image is always virtual for real objects, v is always positive and same is true for f.

The correct options are
A
u is always negative

B
v is always positive

C
f is always negative

For a convex mirror, u has to be negative always. Since the image is always virtual for real objects, v is always positive and same is true for f.