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

Three infinite straight wires $\mathrm{A}, \mathrm{B}$ and C carry currents as shown in figure. The resultant force on wire $B$ is directed

A
towards A
B
towards C
C
perpendicular to the plane of page
D
upwards
2
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Velocity of sound waves in air is $330 \mathrm{~m} / \mathrm{s}$. For a particular sound wave in air, path difference of 40 cm is equivalent to phase difference of $1.6 \pi$. frequency of this wave is

A
165 Hz
B
150 Hz
C
660 Hz
D
330 Hz
3
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In Young's double slit experiment, the intensity of light at a point on the screen where the path difference is $\lambda$ is x units, $\lambda$ being the wavelength of light used. The intensity at a point where the path difference is $\frac{\lambda}{4}$ will be $\left(\cos 2 \pi=1, \cos \frac{\pi}{2}=0\right)$

A
$\frac{x}{4}$
B
$\frac{x}{2}$
C
$x$
D
zero
4
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The stopping potential as a function of frequency of incident radiation is plotted for two different photoelectric surfaces A and B. The graph shows that the work function of A is

A
greater than that of B.
B
smaller than that of B.
C
same as that of B.
D
that no comparison can be made from the graphs.
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