1
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In biprism experiment, the fringe width is 0.6 mm . The distance between $6^{\text {th }}$ dark fringe and $8^{\text {th }}$ bright fringe on the same side of central bright fringe is

A
6 mm
B
4 mm
C
1.5 mm
D
0.9 mm
2
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A radioactive substance has half-life of 60 minute. During 3 hour, the amount of substance decayed would be

A
$8.5 \%$
B
$25 \%$
C
$12.5 \%$
D
$87.5 \%$
3
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A horizontal platform with a small object placed on it executes a linear S.H.M. in the vertical direction. The amplitude of oscillation is 40 cm . What should be the least period of these oscillations, so that the object is not detached from the platform? [Take $\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$]

A
$0.2 \pi \mathrm{~s}$
B
$0.3 \pi \mathrm{~s}$
C
$0.4 \pi \mathrm{~s}$
D
$0.5 \pi \mathrm{~s}$
4
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In Young's double slit experiment, 'I' is the minimum intensity and ' $I_1$ ' is the intensity at a point where the path difference is $\frac{\lambda}{4}$ where ' $\lambda$ ' is the wavelength of light used. The ratio $I_1 \mathrm{I}_1$ is (Intensities of the two interfering waves are same) $\left(\cos 0^{\circ}=1, \cos 90^{\circ}=0\right)$

A
0
B
4
C
3
D
2
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