Home
Class 12
PHYSICS
A converging lens of focal length 10cm a...

A converging lens of focal length `10cm` and a diverging lens of focal length `5cm` are placed `5cm` apart with their principle axes coinciding. A beam of light travelling parallel to the incident one. Find the beam diameter of the emergent beam is parallel to the incident one. Find the beam diamter of the emergent beam. Alos find out the ratio fo emergent and incident intensities.

Promotional Banner

Similar Questions

Explore conceptually related problems

A convex lens of focal length 20 cm and a concave lens of focal length 10 cm are placed 10 cm apart with their principal axes coinciding. A beam of light travelling parallel to the principal axis and having a beam diameter 5.0 mm, is incident on the combination. Show that the emergent beam is parallel to the incident one. Find the beam diameter of the emergent beam.

A convex lens of focal length 20 cm and a concave lens of focal length 10 cm are placed 10 cm apart with their principal axes coinciding. A beam of light travelling parallel to the principal axis and having a beam diameter 5.0 mm, is incident on the combination. Show that the emergent beam is parallel to the incident one. Find the beam diameter of the emergent beam.

A convex lens of focal length 20 cm and a concave lens of focal length 10 cm are placed 10 cm apart with their principal axes coinciding. A beam of light travelling parallel to the principal axis and having a beam diameter 5.0 mm, is incident on the combination. Show that the emergent beam is parallel to the incident one. Find the beam diameter of the emergent beam.

A light beam passes from medium 1 to medium 2. Show that the emerging beam is parallel to the incident beam.

A light beam passes from medium 1 to medium 2. Show that the emerging beam is parallel to the incident beam.

A convex lens of focal length 100 cm and a concave lens of focal length 10 cm are placed coaxialiy at a separation of 90 cm. If a parallel beam of light is incident on convex lens, then after passing through the two lenses the beam

A convex lens A of focal length 20cm and a concave lens G of focal length 5cm are kept along the same axis with the distance d between them. If a parallel beam of light falling on A leaves B as a parallel beam, then distance d in cm will be

A convex lens A of focal length 20cm and a concave lens G of focal length 5cm are kept along the same axis with the distance d between them. If a parallel beam of light falling on A leaves B as a parallel beam, then distance d in cm will be

A light beam, passes from medium 1 to medium 2. Show that the emerging beam is parallel to the incident beam.