According to the New Cartesian Sign Convention, which one of the following is correct is respect of the formula \(\dfrac{1}{f} = \dfrac{1}{v}+ \dfrac{1}{u}\), where symbols have their usual meanings?

It applies only to spherical lenses

It applies only to spherical mirrors

It applies to spherical mirrors as well as spherical lenses

According to the New Cartesian Sign Convention, which one of the follo

1.	According to the New Cartesian Sign Convention, which one of the following is correct is respect of the formula \(\dfrac{1}{f} = \dfrac{1}{v}+ \dfrac{1}{u}\), where symbols have their usual meanings?
A.	It applies only to spherical mirrors
B.	It applies only to spherical lenses
C.	It applies to spherical mirrors as well as spherical lenses
D.	It is an invalid formula
Answer» B. It applies only to spherical lenses

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According to the New Cartesian Sign Convention, which one of the following is correct is respect of the formula \(\dfrac{1}{f} = \dfrac{1}{v}+ \dfrac{1}{u}\), where symbols have their usual meanings?

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