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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Wirte Down the Letter C and I as Seen in a Plane Mirror. - Physics

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प्रश्न

Wirte down the letter C and I as seen in a plane mirror.

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उत्तर

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अध्याय 4: Light Energy - Short/Long Answer Questions

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सेलिना Concise Physics [English] Class 7 ICSE
अध्याय 4 Light Energy
Short/Long Answer Questions | Q 20

संबंधित प्रश्न

If the angle between the mirror and the reflected ray is 23, what is the angle of incidence of the incidence ray?


State two advantages and two disadvantages of the reflecting periscope.


In the figure is shown a concave mirror. A is a point on the principal axis. If an object O is kept at A, image is formed on A itself. Copy the diagram. Draw the image in the diagram. Is the image real or virtual?

Measure the distance PA and write it in the diagram. What is the distance PA called?
Mark a point B on the principal axis, at which, if a point source of light is kept, the rays travel parallel to principal axis after reflection from M. What is point B called?


Distinguish between convergent and divergent beams of light.

A boy is standing in front of a plane mirror at a distance of 3 m from it.
(i) What is the distance between the boy and his image?
(ii) If the boy moves 1 m backward, find the distance between the image and the boy.


State whether the following statement is true or false. If false, correct it.

The angle of incidence is the angle made by the incident ray with the plane mirror.


State whether the following statement is true or false. If false, correct it.

The image formed in a plane mirror is the real, erect, and same size as that of the object.


An object is placed in front of a convex mirror of focal length 25 cm. By scale, a drawing shows the formation of image and states the nature of image.
Given that v = 10 cm.


Which of the following can make a parallel beam of light when light from a point source is incident on it?


Figure shows a ray of light as it travels from medium A to medium B. Refractive index of the medium B relative to medium A is


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