You have to cast the shadow of your pencil on the wall with the help of a candle in a dark room. How can you obtain the shadow of the same size, small size and big size of the same pencil? [5 MARKS]

Open in App

Solution

If 2 Points: 3 Marks
If 3 Points: 5 Marks

(a) The shadow of the pencil will be small in size when the pencil is taken away from the candle and closer to the wall.

(b)The shadow will be big in size when the pencil is taken away from the wall and closer to the candle.

(c)To get the same sized shadow as the pencil, move the pencil to bring it at an equal distance between the wall and the candle.

Suggest Corrections

Similar questions

Question 5

Paheli observed the shadow of a tree at 8:00 a.m., 12:00 noon and 3:00 p.m. Which of the following statements is closest to her observation about the shape and size of the shadow?

(a) The shape of the shadow of the tree changes but the size remains the same.

(b) The size of the shadow of the tree changes but the shape remains the same.

(d) Neither the shape nor the size of the shadow changes.

Q. Can a luminous object in a dark room cast a shadow? Justify your answer.

Q. As compared to a metal sheet, an identical sized tracing paper will cast a ______ shadow.

If you enter a dark room, what happens to the size of the pupil?

Q. Statement 1: Shadows are obtained on the screen where light falls.
Statement 2: Size of the shadow can be different from the size of the object.
Which of the following is correct?

Join BYJU'S Learning Program