Read the following conversation.

Teacher: "If you want to collect virtual images, which mirror do you select?"

Bharathi: "convex mirror"

Sowmya: "concave mirror"

Firoz: "plane mirror"

What do you think? Who is correct? Explain.

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Bharathi is correct.

Sowmya is correct.

Firoz is correct.

Both Bharathi and Firoz are correct

answer is D.

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Detailed Solution

Concept: The above question includes conversations between teachers and students. You can see that the students are discussing which mirror provides the virtual image.
First students say that convex mirrors always produce virtual images. This statement is correct because a convex mirror only creates a virtual image. Convex mirrors are also called dispersive mirrors because they scatter light when they hit the reflective surface. The resulting image is always virtual, upright, or scaled, regardless of the distance between the object and the mirror. This means that you can always get a virtual image no matter where you place the object.
Therefore, you can use a convex mirror to collect virtual images.
Now, the second student, "Sowmya," says that a concave mirror can be used to collect virtual images.
Sohmya's comment is incorrect. Virtual images cannot be collected with a curved mirror. In a concave mirror, the light is bundled at the point of incidence and returned by the reflective surface of the concave mirror. This will, in most cases, create a real image. However, placing the object in front of the focal point of the concave mirror produces an upright image.
But, as I said, in all other cases, the concave mirror produces a real image.
Therefore, it is not possible to collect virtual images with a curved mirror
Firoz states that you can use a plane mirror to collect virtual images. This is also correct. This is because plane mirrors, like convex mirrors, always produce images that are almost stationary. For plane mirrors, the image is always the same size as the object, and the distance from the object to the mirror is equal to the distance from the image to the mirror.
Therefore, you can use a plane mirror to collect virtual images.
Planar and convex mirrors always produce virtual images, so you can use them to collect virtual images. Therefore, Bharathi and Firoz are correct.
Hence, the correct option is 4.

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