A virtual image is one which...

A virtual image is one which

can he taken on a screen

cannot be taken on a screen

sometimes can be and sometimes cannot be taken on a screen

is formed only by a concave mirror

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### Step-by-Step Text Solution: 1. **Understanding Virtual Images**: A virtual image is formed when light rays appear to diverge from a point, but they do not actually converge at that point. This means that the rays of light seem to come from a location where no actual light is present. 2. **Analyzing the Statements**: - **Statement 1**: "Can be taken on a screen." - This statement is incorrect because virtual images cannot be projected onto a screen. Real images can be projected onto a screen as they are formed by converging light rays. - **Statement 2**: "Cannot be taken on a screen." - This statement is correct. Virtual images cannot be captured on a screen because they are not formed by actual light rays converging at a point. - **Statement 3**: "Sometimes can be and sometimes cannot be." - This statement is incorrect. Virtual images are always unable to be projected onto a screen. - **Statement 4**: "It is formed only by a concave mirror." - This statement is also incorrect. Virtual images can be formed by both concave mirrors and convex mirrors. 3. **Conclusion**: The correct statement regarding virtual images is that they "cannot be taken on a screen."

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A virtual image is formed by:

a slide projector in a cinema hall

the ordinary camera

a simple microscope

telescope

Assertion (A) : Magnification of a real image is negative but magnification of a virtual image is positive. Reason (R) : Real image is an inverted image but virtual image is an erect image.

Both (A) and (R) are true and (R) is correct explanation of the assertion.

Both (A) and (R) are true but (R) is not the correct explanation of the assertion.

(A) is true but (R) is false.

(A) is false but (R) is true.

Statement-1 : it is impossible to photograph a virtual image. Statement-2 : The rays which appear diverging from a virtual image fall on the camera and a real image is captured.

Statement-1 is true, Statement-2 is true.
Statement-2 is correct explanation of Statement-1.

Statement-1 is true, Statement-2 is true, but Statement-2 is not a correct explanation of Statement-1.

Statement-1 is true, Statement-2 is false.

Statement-1 is fasle, Statement-2 is true.