Wave optics practice · Mixed difficulty

Which of the following is not a property of light

In Brewster's Law $\mu=\tan i_p$, polarising angle depends on
(a) Wavelength of light

(b) Nature of medium
(c) Amount of light incident on the surface.
Choose the correct option.

Which of the following is correct in YDSE?

The maximum intensity in the case if $n$ identical incoherent waves, each of intensity $\mathrm{2}\;\mathrm{W}{\mathrm{m}^{ - 2}}$ is $32\;W{\mathrm{m}^{ - 2}}$. The value of n is

In young's double slit experiment, the two slits are coherent sources of equal amplitude and wave length $\lambda$. In another experiment with the same setup, two slits are sources of equal amplitude '$A$' and wavelength $\lambda$, but are incoherent. The ratio of intensities of light at the midpoint of the screen in the first case to that in second case, is

Which of the following phenomena can explain quantum nature of light

The band spectra (characteristic of molecular species) is due to emission of radiation

In a Young's double slit experiment, the slits are $2 \mathrm{~mm}$ apart and are illuminated with a mixture of two wavelength $\lambda_0=750 \mathrm{~nm}$ and $\lambda=900 \mathrm{~nm}$. The minimum distance from the common central bright fringe on a screen $2 m$ from the slits where a bright fringe from one interference pattern coincides with a bright fringe from the other is

According to corpuscular theory of light, the different colours of light are due to

An electron microscope is superior to an optical microscope in

The fringe-width in a Young’s double slit experiment can be increased, if we decrease

Two waves, travelling in a medium, meet at a point to obtain sustained interference. Choose the best possible option.

In young's interference experiment, if $\mathrm{I}_0$ be the intensity at the central bright fringe, $\beta$ be the fringe width then the intensity as the function of distance $x$ from the central bright frings is:

If $\beta_1,$ $\beta_2$ and $\beta_3$ are fringe widths for red, green and violet light respectively for the same setup of Young's double slit experiment, then

An objective lens of a telescope has diameter 200 cm. The limit of resolution of telescope for wavelength 600 nm is nearly

In the Young’s double slit experiment, if the phase difference between the two waves interfering at a point is $\phi$, the intensity at that point can be expressed by the expression

Un polarized light of intensity $I_0$ is incident on surface of a block of glass at Brewster's angle. In this case, which one of the following statement is true.

Conditions of diffraction is

Fringe width in a YDSE is measured to be $\beta$. What will be the fringe width if the wavelength of incident light is tripled, the separation between the slits is halved and the separation between the screen and the slits doubled?

Assertion: The resolving power of an electron microscope is higher than that of an optical microscope.

Reason: The wavelength of electron is more than tke wavelength of visible light.

Light from sodium lamp is passed through cold sodium vapours, the spectrum of transmitted light consists of

Assertion : Resolving power of a telescope depends only on wavelength.

Reason : This is proportional to square of wavelength.

In a Young’s double slit experiment, the source illuminating the slits is changed from blue to violet. The width of the fringes

Fraunhoffer spectrum is

Light of wavelength $2000 \mathrm{~A}^{\circ}$ falls on a plane reflecting surface. The wavelength of the reflected light will be

Two sources of light of wavelengths $2500 \mathop {\text{A}}\limits^{\text{o}}$ and $3500 \mathop {\text{A}}\limits^{\text{o}}$ are used in Young's double slit expt. simultaneously. Which orders of fringes of two wavelength patterns coincide?

In Fraunhofer diffraction experiment, $L$ is the distance between screen and the obstacle,$b$ is the size of obstacle and $\lambda$ is wavelength of incident light. The general condition for the applicability of Fraunhofer diffraction is

In a YDSE, if the slits are of unequal widths,