1
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a double slit experiment, the distance between slits is increased 10 times, whereas their distance from screen is halved, the fringe width

A
remain the same.
B
becomes $\frac{1}{10}$ times.
C
becomes $\frac{1}{20}$ times.
D
becomes $\frac{1}{90}$ times.
2
MHT CET 2024 16th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The angular separation of the central maximum in the Fraunhofer diffraction pattern is measured. The slit is illuminated by the light of wavelength $6000 \mathop A\limits^o$. If the slit is illuminated by light of another wavelength, the angular separation decreases by $20 \%$. The wavelength of light used is

A
$6400 \mathop A\limits^o$
B
$5600 \mathop A\limits^o$
C
$4800 \mathop A\limits^o$
D
$4400 \mathop A\limits^o$
3
MHT CET 2024 16th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In Young's double slit experiment, intensity at a point is $\left(\frac{1}{4}\right)$ of the maximum intensity. The angular position of this point is

A
$\sin ^{-1}\left(\frac{\lambda}{D}\right)$
B
$\sin ^{-1}\left(\frac{\lambda}{2 d}\right)$
C
$\sin ^{-1}\left(\frac{\lambda}{3 \mathrm{~d}}\right)$
D
$\sin ^{-1}\left(\frac{\lambda}{4 d}\right)$
4
MHT CET 2024 16th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two sound waves each of wavelength ' $\lambda$ ' and having the same amplitude ' $A$ ' from two source ' $\mathrm{S}_1$ ' and ' $\mathrm{S}_2$ ' interfere at a point P . If the path difference, $\mathrm{S}_2 \mathrm{P}-\mathrm{S}_1 \mathrm{P}=\lambda / 3$ then the amplitude of resultant wave at point ' P ' will be $\left[\cos \left(120^{\circ}\right)=-0.5\right]$

A
$\mathrm{A}$
B
$\mathrm{2 A}$
C
$\frac{\mathrm{A}}{2}$
D
$\frac{3 \mathrm{A}}{2}$
MHT CET Subjects
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