List of top Physics Questions on Spherical Mirrors asked in BITSAT

A ray parallel to the principal axis is incident at 30° from normal on a concave mirror having a radius of curvature R. The point in principal axis where rays are focussed is Q such that PQ is 

Two plano-concave lenses $(1$ and $2)$ of glass of refractive index $1.5$ have radii of curvature $25 \,cm$ and $20 \,cm$. They are placed in contact with their curved surface towards each other and the space between them is filled with liquid of refractive index $4/3$. Then the combination is

A ray parallel to the principal axis is incident at \(30^\circ\) from the normal on a concave mirror having radius of curvature \(R\). The point on the principal axis where rays are focused is \(O\) such that \(PQ\) is:



 

A ray parallel to principal axis is incident at \(30^{\circ}\) from normal on concave mirror having radius of curvature \(R\). The point on principal axis where rays are focussed is \(Q\) such that \(PQ\) is