Can we form (i) an image (ii) a shadow without a screen (iii) coloured shadow of an object?

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Solution

(i) Yes, we can form an image using any finely polished object like mirror, teaspoon.
(ii) No, we cannot form a shadow without a screen. An opaque screen is must to form a shadow of an object.
(iii) No, we cannot form a coloured shadow of an object, as shadow is formed by blocking of light from the object.

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Similar questions

Q. Can a shadow be formed without a screen?

Q. Write True (T) or False (F) against the following statements in the given brackets:
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2. Translucent objects do not form shadows. ( )
3. An oiled paper is an example of an opaque body. ( )
4. A pinhole camera can take pictures of moving objects. ( )
5. A polished metal surface can't act as a mirror. ( )
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8. Image of an object is always black, shadow shows the colour of the object. ( )

Q. Sanchi conducted an experiment to understand how the position of the object can affect the shadow formed on the screen. when she placed the object at position

Y

shadow

1

was formed on the screen as shown.

When the object was placed at position

X

, which of the following would be observed about the shadow on the screen ?

1

.The shadow would be upright.

2

. The shadow would be inverted.

3

. The shadow would be bigger than shadow

1

4

. The shadow would be smaller than shadow

1

Use the following information to answer the next question.

There are four mirrors labelled as I, II, III, and IV. Mirrors I and IV can form virtual and small images only. Mirror III can form an image that can be obtained on a screen. Mirror II cannot form real images of objects.

Which of the given mirrors can form an inverted image of the object?

Q. Which of the following statements about pinhole camera are correct?
(i) It is a camera with a single lens.
(ii) It produces an upside down image of object.
(iii) It does not have a screen.
(iv) It works because light travels in a straight line.
(v) It forms real and colourless shadows of objects.

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