Draw ray diagrams showing the image formation by a convex 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
The real, inverted and highly magnified image forms at infinity on the other side of the object when the object is placed at the focus of the lens.
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 SolutionA lens has a focal length of, -10cm. What is the power of the lens and what is its nature?
- 2View SolutionExplain with the help of a diagram, why a pencil partly immersed in water appears to be bent at the water surface.
- 3The refractive indices of three media are given below :View Solution
A ray of light is travelling from $A$ to $B$ and another ray is travelling from $B$ to $C$.Medium Refractive Index A 1.6 B 1.8 C 1.5
(a) In which of the two cases the refracted ray bends towards the normal?
(b) In which case does the speed of light increase in the second medium?
Give reasons for your answer. - 4View SolutionTo find-the image-distance for varying object-distances in case of a convex lens, a student obtains on a screen a sharp image of a bright object placed very far from the lens. After that he gradually moves the object towards the lens and each time focuses its image of the screen.
- In which direction - towards or away from the lens, does he move the screen to focus the object?
- What happens to the size of the image - does it increase or decrease?
- What happen when he moves the object very close to the lens?
- 5View SolutionAn object of height 2.5cm is placed at a distance of 15cm from the optical centre ‘O' of a convex lens of focal length 10cm. Draw a ray diagram to find the position and size of the image formed. Mark optical centre ‘O', principal focus F and height of the image on the diagram.
- 6View SolutionWhy does a ray of light passing through the centre of curvature of a concave mirror gets reflected along same path after reflection?
- 7View SolutionState the uses of plane mirrors.
- 8What is the speed of light in a medium of refractive index $\frac{6}{5}$ if its speed in air is 3,00,000 km/ s?View Solution
- 9Redraw the following diagram on your answer-sheet and show the path of the reflected ray. Also mark the angle of incidence $(\angle\text{i})$ and the angle of reflection $(\angle\text{r})$ on the diagram.View Solution
- 10View SolutionYour eye contains a convex lens. Why is it unwise to look at the sun?
