light reflection and refraction

Bouncing of a light ray when it strikes a reflecting surface is called.........

• Refraction

• Dispersion

• Reflection

• Diffraction

which of the following is not a property of the image formed by a [lane mirror?

• virtual and erect

• Object size = image size

• object distance = image distance

• Real and inverted

which of the following ray diagrams is correct for the ray of light incident on a concave mirror as shown in the figure 10.6?

• A

• B

• C

• D

The relation between focal length and radius of curvature is

• R = 2f

• 1/f = 2R

• f = R/2

• R = 2/f

The point on the spherical mirror at the middle of the surface is called

• focus

• centre of curvature

• pole

• radius of curvature

The focal length of a plane mirror is ........

• infinite

• zero

• 1m

• 100m

The image formed by a concave mirror when the object is placed between the pole and the focus is ......

• virtual, erect and magnified

• virtual, erect and diminished

• real, inverted and magnified

• real, inverted and diminished

An object is placed at a distance of 0.25 m

in front of a plane mirror. The distance between the object and image will be : -------

• 0.25 m

• 1.0 m

• 0.5 m

• 0.125 m

An object at a distance of + 15 cm is slowly moved towards the pole of a convex mirror. The image will get : __________

• shortened and real

• enlarged and real

• enlarge and virtual

• diminished and virtual

Nature, position of the image and type of lens used when the magnification is (-1).

• Real, inverted and enlarged image beyond 2F2 obtained from concave lens.

• Virtual , erect and diminished image at 2F1 obtained from concave lens.

• Real , erect and enlarged image at 2F2 obtained from convex lens

• Real, inverted and similar sized image at 2F2 obtained from convex lens.