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प्रश्न
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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उत्तर
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संबंधित प्रश्न
Which property of light makes a pencil cast a shadow when it is held in front of a light source?
A wall reflects light and a mirror also reflects light. What difference is three in the way they reflect light?
Which type of reflection of light leads to the formation of images?
What type of reflection of light takes place from a cinema screen?
The boy walks towards the mirror at a speed of 1 m/s. At what speed does his image approach him?
If a ray of light goes form a denser medium to a rarer medium, will it bend towards the normal or away from the normal?
State two effects caused by the refraction of light.
Light travels more quickly through water than through glass.
Which is optically denser : water or glass?
Light travels more quickly through water than through glass.
If a ray of light passes from glass into water, which way will it bend : towards the normal or away from the normal?
A coin in a glass tumbler appears to rise as the glass tumbler is slowly filled with water. Name the phenomenon responsible for this effect.
Explain with the help of a labelled ray diagram, why a pencil partly immersed in water appears to be bent at the water surface. State whether the bending of pencil will increase or decrease if water is replaced by another liquid which is optically more dense than water. Give reason for your answer.
A ray of light passes from medium 1 to medium 2. Which of the following quantities of the refracted ray will differ from that of the incident ray: Speed, intensity, frequency, wavelength?
Fill in the blank and Explain the completed sentences.
The change in ______ of light rays while going from one medium to another is called refraction.
What is atmospheric reflection? Explain with the help of a labelled diagram that the position of a star as seen by us is not its true position.
Explain how the formation of a rainbow occurs.
The laws of reflection hold true for ______.
Write scientific reason.
The bottom of a pond appears raised.
The angle of incidence from air to glass at the point O on the hemispherical glass slab is.
The bending of light as it passes from one medium to another is called ______.
Assertion: The air bubble shines in water.
Reason: Air bubble shines due to the refraction of light.
