Which of the following is used in fiber optics?

Both virtual and real images can be formed by a

For a virtual image made on the right side of the lens by a real object, the image distance is

In a simple lens camera, the distance between lens and film is

The endoscope used to examine the bladder is called

The thin lens formula assumes that lenses have

A bundle of thousands of optical fibers bonded together is called

The outer concentric shell of the fiber optics is called

The phenomenon in which light traveling in one medium falls on the surface of another medium and turns back in the same medium is called

In mirrors, images are formed through

If the angle of incidence becomes larger than the critical angle then the phenomena of

An image of a statue appears to be 12.6 cm behind a concave mirror with a focal length of 14.5 cm. The distance between the mirror and the statue is

When light passes through a prism it deviates from its original path because of

The midpoint of the curved surface of a spherical mirror is called

If the angle of incidence 'i&rsquo increases, the angle of refraction 'r&rsquo

An object 4 cm high is placed at a distance of 12 cm from a concave lens, If the focal length is 8 cm then the size of the object is

In different media, refraction of light is caused by the difference in speed of

When the angle of incidence becomes larger than the critical angle, then

The angle of incidence and angle of reflection is

The incident ray, the normal and the reflected ray at the point of incidence all lie in the same plane. This is the law of

The focus of the concave mirror is

If ‘p’ is object distance ‘q’ is image distance from the mirror and ‘f’ is the focal length of the mirror then 1/f is equal to

As compared to the single lens, a compound microscope gives

In 1900, Planck suggested that light consists of small packets of energy that are called

The SI unit of power of a lens is

When dealing with diverging lenses, with focal length and image position we use

The types of spherical mirrors are

The convex lens becomes a magnifying glass when

For a concave mirror, the focus is

The ciliary muscles of the eye control the