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Question

Statement 1: Concave mirrors are used in solar furnaces to focus sunlight at a point for
heating.
Statement 2: Convex mirrors can never form real images.

The correct answer is
Both statements 1 and 2 are correct.

Concave Mirror Solar Furnace Application

Concave mirrors are converging mirrors. They reflect parallel light rays, like those from the sun, towards a single point called the focal point.

In solar furnaces, this property is used to concentrate sunlight intensely onto the focal point. This concentration generates high temperatures needed for heating or melting materials.

Therefore, Statement 1 is correct.

Convex Mirror Real Image Limitation

Convex mirrors are diverging mirrors. They reflect parallel light rays outwards, away from each other.

The virtual image formed by a convex mirror appears behind the mirror. It is always diminished, erect, and virtual. Since the light rays do not actually converge at the location of the virtual image, it cannot be projected onto a screen, meaning it is not a real image.

Convex mirrors can only form virtual images, never real images.

Therefore, Statement 2 is correct.

Overall Conclusion

Since both Statement 1 and Statement 2 are correct, the option stating that both are correct is the right choice.

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Important Questions from Mirrors and Images

  1. Which one of the following telescopes contains only mirrors?

  2. The correct relation between the radius of curvature R and focal length f of a spherical mirror is

  3. Spherical mirror formula relating an object distance ‘u’, image distance ‘v’ and focal length of mirror ‘f’ may be applied to a plane mirror when

  4. The image of an object formed by a plane mirror is

  5. The image we see in plane mirror is

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