Quiz on Wave Optics

Q.1 Which of the following does not support the wave nature of light

interference
polarisation
compton effect
diffraction

Q.2 A phase difference p between two interfering beams is equivalent to path deference

2 times wavelength
wavelength
half wavelength
none of them

Q.3 In Newton's rings experiment, the diameter of bright rings is proportional to

odd natural numbers
natural numbers
even natural numbers
square root of natural numbers

Q.4 Which of the following method(s) is/are based on division of amplitude?

Newton's rings
Michelson interferometer
(a) and (b)
none of these

Q.5 What is the actual shape of interference fringes in Young's double slit experiment?

circular
elliptical
parabolic
hyperbolic

Q.6 In Newton's rings arrangement, bright and dark rings are obtained using sodium yellow light. What happens if the top surface of the glass plate on which the lens is kept is highly silvered?

fringes disappear
fringe width remains unchanged
fringe width decreases
none of these

Q.7 To find prominent diffraction, the size of the diffracting object should be

greater than the wavelength of light used
of the order of wavelength of light
less than the wavelength of light
none of these

Q.8 In Fraunhofer diffraction, the incident wavefront should be

elliptical
plane
spherical
cylindrical

Q.9 Which of the following colour (wavelength) will be diffracted more, when white light is used?

red
green
violet
none of these

Q.10 Maximum number of orders found with a grating is

independent of grating element
directly proportional to the grating element
proportional to the wavelength
none of these