Science Questions

The speed of light in a vacuum is c. If it enters a medium of RI 'n', its wavelength changes to:

What is the power of a plane glass plate?

An object is placed at a distance 'u' from a convex lens and its real image is formed at 'v'. The graph of 1/v versus 1/u is a:

Scattering of light by colloidal particles is known as:

The unit of luminous intensity is:

If the objective and eyepiece of a microscope are interchanged, it will act as:

In a ray diagram for a concave mirror, a ray passing through the center of curvature:

The primary cause of refraction is:

Which of the following describes the 'f-number' of a camera?

What type of lens is formed by an air bubble inside water?

What is the speed of light in a vacuum?

Which mirror is used as a rear-view mirror in vehicles?

What is the relation between the focal length (f) and the radius of curvature (R) of a spherical mirror?

The phenomenon of bending of light when it passes from one medium to another is called:

The point on the principal axis where parallel rays of light meet after reflection from a concave mirror is called:

Which color of light deviates the least when passing through a prism?

What type of lens is used to correct Myopia (Short-sightedness)?

The S.I. unit of power of a lens is:

An object is placed at the center of curvature of a concave mirror. The position of the image is:

What is the nature of the image formed by a plane mirror?