A thin convex lens and a thin concave lens are kept in contact and co-axially. Which statement is correct? [JEE Main 202…

Behaves as concave lens if \(\left|{f}_{\text{convex }}\right|>\left|{f}_{\text{concave }}\right|\)

Behaves as concave lens if \(\left|{f}_{\text{convex }}\right|<\left|{f}_{\text{concave }}\right|\)

Behaves as convex lens if \(\left|{f}_{\text{convex }}\right|>\left|{f}_{\text{concave }}\right|\)

Focal length of the lens system will change if the positions of two lenses are interchanged