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If an Object is Placed at a Distance of 10 Cm in from of a Plane Mirror, How Far Would It Be from Its Image? - Science

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प्रश्न

If an object is placed at a distance of 10 cm in from of a plane mirror, how far would it be from its image?

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उत्तर

It will be 20 cm away from its image. This is because the distance of the plane mirror from the object is equal to its distance from the image. 

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अध्याय 4: Reflection of Light - Exercise 1 [पृष्ठ १७३]

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लखमीर सिंग Physics (Science) [English] Class 10
अध्याय 4 Reflection of Light
Exercise 1 | Q 9 | पृष्ठ १७३

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संबंधित प्रश्न

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.


The letter F is placed in front of a plane mirror: 

 How would its image look like when seen in a plane mirror?


A wall reflects light and a mirror also reflects light. What difference is three in the way they reflect light? 


What is meant by 'reflection of light'?


An object is placed 20 cm in front of a plane mirror. The mirror is moved 2 cm towards the object. The distance between the positions of the positions of the original and final images seen in the mirror is ______.


Fill in the following blank with suitable word:  

Light bends when is passes from water into air. We say that it is ............


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 a medium X to another medium Y. No refraction of light occurs if the ray of light hits the boundary of medium Y at an angle of:

(a) 0°
(b) 45°
(c) 90°
(d) 120°


A vertical ray of light strikes the horizontal surface of some water: 

 What is the angle of incidence?


A ray of light when passes from glass to air, bends towards the normal.


When a ray of light travels from air to glass, it bends .......... the normal.


Draw a diagram showing the refraction of a light ray from water to glass. Label on it the incident ray, the angle of incidence (/), and the angle of refraction (r)


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.


List in proper sequence the steps of the experiment for determining the approximate focal length of a given concave mirror by obtaining the image of a distant object.


The refractive index of four substances A, B, C, and D are 1.31, 1.43, 1.33, 2.4 respectively. The speed of light is maximum in


The deviation of light ray from its path when it travels from one transparent medium to another transparent medium is called ______.


The angle of incidence for a ray of light having zero reflection angle is ______.


Light bends as it passes from one medium to another. What is this phenomenon called?


Mirage is an example of refraction and the total internal reflection of light.


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