Real and virtual image - class-X

Real image can be captured on a screen.

If the reflected rays are extended behind the mirror, then their intersection gives the location of the image behind the mirror. For a convex mirror, the image is diverging, virtual and upright and is formed behind the mirror. 
Hence, if image is formed behind the mirror, it is virtual and erect.

For a plane mirror the image formed is behind the mirror, so by definition its virtual

For a real image to be formed, two light rays have to actually intersect by definition.

Virtual objects can be captured or photographed as the rays appears to originate from it.

A plane mirror always forms an image which is virtual in nature (meaning that light rays meet behind the mirror or that light rays do not actually come from the image), erect and of the same shape and size as that of the object it is reflecting.
Hence, the correct answer is OPTION A. 

Virtual images cannot be taken on screen as they are not formed by actual intersection of light rays.

since we know that for an image to be obtained on screen rays should intersect on the screen but virtual image is formed by no actual meeting of rays hence it is not possible to be obtained on screen. we can observe from all the virtual images formed, they are always errect.

Virtual image are the images that can be obtained on screen while real images can't be obtained on a screen. This is basic difference between real and virtual image.

In rear view mirrors, convex mirrors are used. They form virtual and erect images.

A movie projector uses two mirrors. First is used to concentrate light source and second is used to focus the images on the screen. Since images are inverted twice, final images are erect. 

The given statement is true that we can  obtain the real image on the screen but not the virtual image.

Only real image can be obtained on screen but not the virtual image. So the given statement is true.

For any image to be formed on a screen we need to have actual rays intersecting on the screen. Hence only real image can be taken on a screen.

A $ \bf{concave\ lens} $ always produces virtual, erect and diminished images and the decrease in the size of the image depends on the position of the object.

Virtual image can be photographed.

A convex mirror always forms a virtual, erect, and diminished image for any real object placed in front of it, regardless of the object's distance.

Concave mirrors form an real and inverted image due to which the objects would appear to be inverted,hence are not taken into use for vehicles . And also conave mirrors cover a much lesser field of view

Given,

To find the mirror image of a clock time, subtract the given time from 11:60:00 or 12:00:00. Subtracting 8:40:10 from 11:59:60 gives 3:19:50.

Lets go option wise:
A. If the incident rays are converging, that means they are from virtual object very far away. If rays are from a real object, they will be diverging. Hence Option A is wrong. 
B. If final rays are converging, they will definitely intersect and we will have a formation of a virtual image. Hence Option B is correct.
Option C & D are absurd.

Using the refraction formula for a spherical surface, m = (n1v) / (n2u). Given u = -infinity (if object is far) or specific distance, the calculation depends on the object distance which is not clearly defined as 'in front'. Assuming standard conventions, the result is 3 cm.

For the image to form at the object's position, the light rays must strike the mirror normally. This occurs when the object is placed at the center of curvature of the mirror system, accounting for the refraction through the water layer.

Virtual images cannot be captured on a screen.

The image that is formed by virtual convergence (or say appear to diverge) at a point and can't be obtained on screen is called a virtual image.

A real image is a set of points which act as another light source for the real object. It’s like a real replica of the object as far as the optics is concerned. So a real image is only formed when rays from different points on the object meet each other (converge).

Since rays are only converged by a concave mirror or a convex lens towards their center, rays can only meet below the X-axis if the object is above the X-axis, hence real image is formed inverted in all planes with respect to the object.

So the image is always inverted.

If the image is real then the light will actually converge to form it.