Navigate

An object is 8 cm high. It is desired to form a real image 4 cm high at 60 cm from

An object is 8 cm high. It is desired to form a real image 4 cm high at 60 cm from the mirror. The type of mirror needed with the focal length is

Options

(a) convex mirror with focal length f=40 cm
(b) convex mirror with focal length f=20 cm
(c) concave mirror with focal length f=-40 cm
(d) concave mirror with focal length f=-20 cm

Correct Answer:

convex mirror with focal length f=40 cm

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

JK2013
admin:

Related Questions

  1. When a wire of uniform cross-section a, length l and resistance R
  2. When alpha particles captures and electron, then it becomes a
  3. Which wavelengths of sun is used finally as electric energy?
  4. In a n-p-n transistor about 10¹⁰ electrons enter the emitter in 2 μs,
  5. A black body is at 727⁰C. It emits energy at a rate which is proportional to