Draw ray diagrams showing the image formation by a concave lens when an object is placed:
At the focus of the lens.
At the focus of the lens.
Download our app for free and get started
Download our appand 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
- 1View SolutionIf the object is moved further away from the mirror, what changes are there in the position and size of the image?
- 2View SolutionState any four characteristics of the image of an object formed by a plane mirror.
- 3View SolutionThe diagram given alongside shows a ray of light entering a rectangular block of glass:
- Copy the diagram and draw the normal at the point of entry.
- Draw the approximate path of the ray of light through the glass block and out of the other side.
- 4In an experiment with a rectangular glass slab, a student observed that a ray of light incident at an angle of $55^{\circ}$ with the normal on one face of the slab, after refraction strikes the opposite face of the slab before emerging out into air making an angle of $40^{\circ}$ with the normal. Draw a labelled diagram to show the path of this ray.' What value would you assign to the angle of refraction and angle of emergence?View Solution
- 5View SolutionA student focuses the image of a candle flame, placed at about 2 m from a convex lens of focal length 10 cm, on a screen. After that he moves gradually the flame towards the lens and each time focuses its image on the screen.
- In which direction does he move the lens to focus the flame on the screen?
- What happens to the size of the image of the flame formed on the screen?
- What difference is seen in the intensity (brightness) of the image of the flame on the screen?
- What is seen on the screen when the flame is very close (at about 5 cm) to the lens?
- 6View SolutionDraw ray diagrams showing the image formation by a concave mirror when an object is placed:
At centre of curvature of the mirror. - 7View SolutionBriefly describe how you would find the focal length of a concave mirror quickly but approximately.
- 8View SolutionWith the help of a labelled ray diagram, describe how a converging mirror can be used to give an enlarged upright image of an object.
- 9View SolutionWhat is the position of the image when an object is placed at a distance of 20cm from a concave mirror of focal length 20cm?
- 10View SolutionA 4 cm tall object is placed on the principal axis of a convex lens. The distance of the object from the optical centre of the lens is 12cm and its sharp image is formed at a distance of 24cm from it on a screen on the other side of the lens. If the object is now moved a little away from the lens, in which way (towards the lens or away from the lens) will he have to move the screen to get a sharp image of the object on it again? How will the magnification of the image be affected?