Advertisements
Advertisements
Question
Suppose we wish to obtain the real image of a distant tree. Explain two possible ways in which we can do it.
Advertisements
Solution
Two possible ways in which the real image of a distant tree can be obtained are given below:
- By using a concave mirror and a screen. In a concave mirror, a real image is formed if the distance between the mirror and the object is beyond the focus.
- By using a convex lens and a screen. In a convex lens, when the object is far away from the lens, the image is very close to the lens, real and inverted.
APPEARS IN
RELATED QUESTIONS
Write true or false of the following statement.
The image formed by a plane mirror is real
Fill in the blank
A plane mirror _________ reflects 100 percent light falling on it.
What do you understand by the Diffused Light?
An object 3 cm high produces a real image 4.5 cm high when placed at a distance of 20 cm from a concave mirror. Calculate:
- the position of image
- focal length of the concave mirror.
Draw a neat two ray diagram to illustrate how a concave mirror is used as a shaving mirror.
Copy the figure. By taking two rays from point A, show the formation of image. State four characteristics of the image.

Copy the figure and complete it, by drawing two rays to show the formation of the image of the object AB. State the size, position and nature of image formed.

The word PLATE written on a paper is held in front of a plane mirror. Write down the letters as seen in the following case.
The paper is held perpendicular to the mirror.

What is Translucent objects? Give an example.
A burning candle in water
Take a shoe box, open on one side. Place a small lighted candle in it. Place a clear glass sheet (roughly 25 cm × 25 cm) in front of this candle figure. Try to locate the image of the candle behind the glass sheet. Place a glass of water at its position. Ask your friends to look at the image of the candle through the sheet of glass. Ensure that candle is not visible to your friends. Your friends will be surprised to see the candle burning in water. Try to explain the reason.

