Yellow light is used in single slit diffraction experiment with s… - Vidyadip

MCQ

Yellow light is used in single slit diffraction experiment with slit width $0.6\, mm.$ If yellow light is replaced by $X-$rays then the pattern will reveal

A
That the central maxima is narrower
✓
No diffraction pattern
C
More number of fringes
D
Less number of fringes

✓

Answer

Correct option: B.

No diffraction pattern

b
(b)Diffraction is obtained when the slit width is of the order of wavelength of EM waves (or light). Here wavelength of $X-$rays ($1-100 Å$) is very-very lesser than slit width ($0.6 \,mm$). Therefore no diffraction pattern will be observed.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The de-Broglie wavelength of an electron having $80eV$ of energy is nearly .............. $\mathop {\rm{A}}\limits^o $ ($1eV = 1.6 ×10^{-19} J$, Mass of electron $= 9 ×10^{-31} kg$ Plank’s constant $= 6.6 × 10^{-34}$ $J-sec$)

Consider an optical communication system operating at $800\, nm$. Suppose, only $1%$ of the optical source frequency is the available channel bandwidth for optical communication. How many channels can be accommodated for transmitting audio signals requiring a bandwidth of $8 \,kHz$

An oil flowing on water seems coloured due to interference. For observing this effect, the approximate thickness of the oil film should be

A shell in free space initially at rest explodes into two pieces, $A$ and $B$ , which then move in opposite directions. Piece $A$ has less mass than piece $B$ . Ignore all external forces. Identify correct statement

Which of the following electro magnetic waves are used in telecommunication ?

A massless spring gets elongated by amount $x_1$ under a tension of 5 N . Its elongation is $x _2$ under the tension of 7 N . For the elongation of $\left(5 x_1-2 x_2\right)$, the tension in the spring will be,

The shown $H$ shaped apparatus contains an ideal incompressible liquid and has dimension as shown in figure . The diameters of the Tubes are small as compared to $h$ and $R$. The apparatus is rotated with a constant angular velocity $\omega$ about a symmetric vertical axis as shown in figure. The pressure at point $A$ is

Two long wires are hanging freely. They are joined first in parallel and then in series and then are connected with a battery. In both cases, which type of force acts between the two wires

$A$ ray of light is incident on a concave mirror. It is parallel to the principal axis and its height from principal axis is equal to the focal length of the mirror. The ratio of the distance of point $B$ to the distance of the focus from the centre of curvature is ($AB$ is the reflected ray)

The $K.E.$ and $P.E.$ of a particle executing $SHM$ with amplitude $A$ will be equal when its displacement is-