Distinguish between a real and a virtual image of an object. What type of image is formed?
  1. By a plane mirror.
  2. On a cinema screen?
Download our app for free and get startedPlay store
  1. REAL IMAGE: The rays appears to meet at a point after reflection. The image formed is real.
  2. VIRTUAL IMAGE: The rays seems to be appear at a point after reflection. The image formed is virtual.
The image formed on:
  • Cinema screen is real and inverted.
  • Plane mirror is virtual and erect.
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    What is a lens? Distinguish between a convex lens and a concave lens. Which of the two is a converging lens : convex lens or concave lens?
    View Solution
  • 2
    Describe the New Cartesian Sign Convention used in optics. Draw a labelled diagram to illustrate this sign convention.
    View Solution
  • 3
    An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm. Draw the ray diagram and find the position, size and the nature of the image formed.
    View Solution
  • 4
    The image of an object place at 60cm in front of a lens is obtained on a screen at a distance of 120cm from it. Find the focal length of the lens. What would be the lens? What would be the height of the image? If the object is 5cm high?
    View Solution
  • 5
    If the image formed by a lens for all positions of the object placed in front of it is always virtual, erect and diminished, state the type of the lens. Draw a ray diagram in support of your answer. If the numerical value of focal length of such a lens is 20cm, find its power in new cartesian sign conventions.
    View Solution
  • 6
    An object is placed at a distance equal to 2f in front of a convex lens. Draw a labelled ray diagram to show the formation of image. State two characteristics of the image formed.
    View Solution
  • 7
    When an object is placed at a distance of 50cm from a concave spherical mirror, the magnification produced is,$-\frac{1}{2}$ Where should the object be placed to get a magnification of, $-\frac{1}{5}?$
    View Solution
  • 8
    An object 3cm high is placed at a distance of 10cm in front of a converging mirror of focal length 20cm. Find the position, nature and size of the image formed.
    View Solution
  • 9
    The image of a candle flame placed at a distance of 45cm from a spherical lens is formed on a screen placed at a distance of 90cm from the lens. Identify the type of lens and calculate its focal length. If the height of the flame is 2cm, find the height of its image.
    View Solution
  • 10
    How would a pencil look like if you saw it through (a) a concave lens, and (b) a convex lens? (Assume the pencil is close to the lens). Is the image real or virtual?
    View Solution