Please select a subject first
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Which property of light makes a pencil cast a shadow when it is held in front of a light source?
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Fill in the following blank with a suitable word:
When light is reflected, the angles of incidence and reflection are ............ .
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State whether the following statement is true of false:
A student says that we can see an object because light from our eyes is reflected back by the object.
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Where is the image when you look at something in a mirror?
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A ray of light strikes a plane mirror such that its angle of incidence is 30°. What angle does the reflected ray make with the mirror surface?
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The letter F is placed in front of a plane mirror:
How would its image look like when seen in a plane mirror?
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What is lateral inversion? Explain by giving a suitable example.
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Write the word AMBULANCE as it would appear when reflected in a plane mirror. Why is it sometimes written in this way (as its mirror image) on the front of an ambulance?
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What are the important differences between looking at a photograph of your face and looking at yourself in a plane mirror?
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A wall reflects light and a mirror also reflects light. What difference is three in the way they reflect light?
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Which type of reflection of light leads to the formation of images?
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What is the difference between regular reflection of light and diffuse reflection of light?
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What type of reflection of light takes place from a cinema screen?
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A boy with a mouth 5 cm wide stands 2 m away from a plane mirror. Where is his image and how wide is the image of his mouth?
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The boy walks towards the mirror at a speed of 1 m/s. At what speed does his image approach him?
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An extended object in the form of an arrow pointing upward has been placed in front of a plane mirror. Draw a labelled ray-diagram to show the formation of its image.
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State the uses of plane mirrors.
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What is meant by 'reflection of light'?
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Define the following terms used in the study of reflection of light by drawing a labelled ray-diagram:
(a) Incident ray
(b) Point of incidence
(c) Normal
(d) Reflected ray
(e) Angle of incidence
(f) Angle of reflection
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State and explain the laws of reflection of light at a plane surface (like a plane mirror), With the help of a labelled ray-diagram. Mark the angles of 'incidence' and 'reflection' clearly on the diagram. If the angle of reflection is 47.5°, what will be the angle of incidence?
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