Physics for class 10

Radius of curvature of a plane mirror is

• Zero

• Infinity

• Finite but very large

• 25cm

Image formed by a plane mirror is

• Real and erect

• Real and inverted

• Virtual and erect

• Virtual and inverted

Spherical mirrors are made from

• Section of a sphere

• Section of a circle

• Section of a cone

• Section of a cylinder

The radius of curvature of a spherical mirror is 50cm. It's focal length is

• 25cm

• 40cm

• 50cm

• 100cm