1
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two point charges +10 q and -4 q are located at $\mathrm{x}=0$ and $\mathrm{x}=\mathrm{L}$ respectively. What is the location of a point on the $x$-axis from the origin, which the net electric field due to these two point charges is zero?( $r=$ required distance$)$

A
$\mathrm{r}=\frac{\sqrt{2}}{\sqrt{5}-\sqrt{2}}$ right to pt. B
B
$\mathrm{r}=\frac{\sqrt{2}}{\sqrt{5}-\sqrt{2}}$ left to pt.A
C
$\mathrm{r}=\frac{\sqrt{2}}{\sqrt{5}+\sqrt{2}}$ right to pt.B
D
$\mathrm{r}=\frac{\sqrt{2}}{\sqrt{5}+\sqrt{2}}$ left to pt.A
2
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the potential difference used to accelerate electrons is increased four times, by what factor does the de-Broglie wavelength associated with the electrons change?

A
Wavelength increased two times
B
Wavelength decreased to half
C
Wavelength increased four times
D
Wavelength remains the same
3
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

When the string is stretched between two rigid supports, under certain tension and vibrated

A
antinodes at both ends and at least one node in between
B
Nodes at both ends and at least one antinode in between
C
Nodes at both ends and no antinode in between
D
antinodes at both ends and no node in between
4
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Simple microscope is used to see the object first in blue light and then a red light. Due to the change from blue to red light, its magnifying power

A
decreases
B
increases
C
remains same
D
first increases and then decreases
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