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Q 01 / 25
A concave mirror can form a real and inverted image.
Q 02 / 25
The focal length of a convex mirror is negative.
Q 03 / 25
The center of curvature of a mirror lies on the reflecting surface.
Q 04 / 25
The image formed by a convex mirror is always virtual and diminished.
Q 05 / 25
A real image can be obtained on a screen.
Q 06 / 25
The radius of curvature of a mirror is twice its focal length.
Q 07 / 25
The image formed by a plane mirror is always real.
Q 08 / 25
Laws of reflection are valid only for plane mirrors.
Q 09 / 25
The angle of incidence is equal to the angle of reflection.
Q 10 / 25
The refractive index of water is more than that of glass.
Q 11 / 25
In refraction, the speed of light increases when it enters from a denser to a rarer medium.
Q 12 / 25
The incident ray, the reflected ray, and the normal all lie in the same plane.
Q 13 / 25
When light enters a denser medium from a rarer medium, it bends away from the normal.
Q 14 / 25
The image formed by a concave mirror for an object placed at the center of curvature is of the same size as the object.
Q 15 / 25
Refraction occurs because light changes its speed when it passes from one medium to another.
Q 16 / 25
The image formed by a convex mirror can be larger than the object.
Q 17 / 25
Total internal reflection can occur when light passes from water to air.
Q 18 / 25
Light always travels in a straight line.
Q 19 / 25
Virtual images cannot be captured on a screen.
Q 20 / 25
The mirror formula relates object distance, image distance, and focal length for spherical mirrors.
Q 21 / 25
Refraction does not change the color of light.
Q 22 / 25
Parallel rays after reflection from a convex mirror appear to diverge from its principal focus.
Q 23 / 25
The power of a lens is measured in diopters.
Q 24 / 25
When the object is at infinity, a concave mirror forms the image at the principal focus.
Q 25 / 25
The human eye uses refraction of light to form images.
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