Parallel rays, from the top of a distant tree, incident on a concave mirror, form an image on the screen. The correct diagram showing the image is

In an experiment to trace the path of a ray of light passing through a rectangular glass slab, four students tabulated their observations as given below. Which student performed the experiment most correctly?

For the refraction through a rectangular glass slab the diagram is given below. The angle of incidence, angle of emergence and angle of refraction are respectively

A student determined the focal length of a device 'X‘ by focusing a distant object on the screen as shown in the following diagram. Select the correct option.

Image formed by plane mirror is _______________

A concave mirror gives real, inverted and same size image if the object is placed at _______________

The full length image of a distant tall building can be seen by using

If the magnification of a lens has positive value , the image is

The power of the lens is +2.5D. Its focal length in cm will be

The magnification produced by a rear view mirror that is used in the vehicles is