हिंदी

You are provided with a convex mirror, a concave mirror, a convex lens and a concave lens. You can get an inverted image from - Science

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प्रश्न

You are provided with a convex mirror, a concave mirror, a convex lens and a concave lens. You can get an inverted image from

विकल्प

  • both concave lens and convex lens.

  • both concave mirror and convex mirror.

  • both concave mirror and convex lens.

  • both convex mirror and concave lens.

MCQ
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उत्तर

both concave mirror and convex lens.

Explanation:

Both concave mirror and convex lens. Both concave mirror and convex lens can form inverted and real images of an object.

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अध्याय 15: Light - MULTIPLE CHOICE QUESTIONS [पृष्ठ ८१]

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एनसीईआरटी एक्झांप्लर Science [English] Class 7
अध्याय 15 Light
MULTIPLE CHOICE QUESTIONS | Q 7. | पृष्ठ ८१

संबंधित प्रश्न

A student wants to project the image of a candle flame on a screen 48 cm in front of a mirror by keeping the flame at a distance of 12 cm from its pole.

(a) Suggest the type of mirror he should use.

(b) Find the linear magnification of the image produced.

(c) How far is the image from its object?

(d) Draw ray diagram to show the image formation in this case.


For what position of an object, a concave mirror forms a real image equal in size to the object?


Which mirror is used as a torch reflector? Draw a labelled diagram to show how a torch reflector can be used to produce a parallel beam of light. Where is the bulb placed in relation to the torch reflector?


Which type of mirror is used in a solar furnace? Support your answer with reason.


A converging mirror forms a real image of height 4 cm of an object of height 1 cm placed 20 cm away from the mirror:

  1. Calculate the image distance.
  2. What is the focal length of the mirror?

How far should an object be placed from the pole of a converging mirror of focal length 20cm to form a real image of the size exactly `1/4`th the size of the object?


A man holds a spherical shaving mirror of radius of curvature 60 cm, and focal length 30 cm, at a distance of 15 cm, from his nose. Find the position of image, and calculate the magnification. 


Name the lens which can concentrate sun's rays to a point and burn a hole in a piece of paper. 


If the radius of curvature of a concave mirror is 20 cm, its focal length is:


Under which of the following conditions a concave mirror can form an image larger than the actual object?


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