What is the focal plane of a concave mirror?
Important Questions on Light : Reflection and Refraction
To find the focal length of a concave mirror, the four students, Ram, Shamim, Kamla and Ruksana obtained the image of the window grill on a wall. They measured the distances as given below between:
Ram - Window grill and the wall only
Shamim - Window grill and the mirror only
Kamla - Mirror and wall only
Ruksana - Window grill and the wall and also between the mirror and the wall
Correct focal length will be obtained by the student.
A student obtained a sharp image of the grill of a window on a screen using a convex lens. For better results, the teacher suggested focusing of a distant tree instead of the grill. In what direction should the lens be moved for this purpose?
A convex lens is distinguished from a concave lens by the property of
A student does the experiment on tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. He can get a correct measure of the angles of incidence and angles of emergence by following the label indicated in figure.
If a ray of light passes along the principal axis of a convex lens, it
While performing the experiment on tracing the path of a ray of light passing through a glass slab as shown in the figure, four students interpreted the results as given. Choose the correct option.
Four students reported the following observation tables for the experiment to trace the path of a ray of light passing through a glass slab for different angles of incidence. The observation likely to be correct are those of student.
