A convex lens of focal length 100 cm and a concave lens of focal length 10 cm are placed coaxially 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

Question

A convex lens of focal length 100 cm and a concave lens of focal length 10 cm are placed coaxially 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) Converges (B) Diverges (C) Remains parallel (D) Disappears

Tardigrade Admin · Accepted Answer

Virtual object for concave lens is at its focus.

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

Converges

Diverges

Remains parallel

Disappears

Virtual object for concave lens is at its focus.

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