List of top Physics Questions on Wave optics asked in KCET

In the experiment of diffraction at a single slit, if the slit width is decreased, the width of the central maximum

In Young's double slit experiment the separation between the slits is halved and the distance between the slits and the screen is doubled. The fringe width will

The phenomenon of diffraction of light was discovered by

In a cinema hall the distance between the projector and the screen is increased by 2 %. Now the intensity of illumination of the screen

A mirror forms a real image of unit magnification. Its nature is

Biaxial crystal among the following is

Biaxial crystal among the following is

When a thin metal plate is placed in the path of one of the interfering beams of light

Bright colours exhibited by spider's web, exposed to sun light are due to

Light of certain wavelength and intensity ejects photoelectrons from a metal plate. Then this beam is replaced by another beam of smaller wavelength and smaller intensity. As a result

Velocity of light, according to this theory, is greater in a denser medium than in a rarer medium

Numerical aperture of an oil immersion objective using oil of R.I. 1.5 is 0.75. Then, its numerical aperture, when kept in air is

A mirror produces a magnified erect image of an object. The nature of the mirror is

Time of exposure for a photographic print is 10 s, when a lamp of 50 cd is placed at 1 m from it. Then another lamp of luminous intensity I is used, and is kept at 2 m from it. If the time of exposure now is 20 sec, the value of I is (cd)

A beam of light is passed through a polaroid and the latter is rotated with the beam of light as axis. The intensity of the emergent light varies between a maximum and minimum. Then the light used is

Optically active substance among the following is

Unpolarised light converts to partially or plane polarised light by many processes, Which of the following does not do that ?