1
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For the diagram shown, the resistance between points A and B when the ideal diode ' $D$ ' is forward biased is ' $R_1$ ' and that when reverse biased is ' $R_2$ '. The ratio $\frac{R_1}{R_2}$ is

MHT CET 2024 9th May Morning Shift Physics - Semiconductor Devices and Logic Gates Question 70 English

A
$\frac{2}{3}$
B
$\frac{2}{5}$
C
$\frac{3}{2}$
D
$\frac{5}{2}$
2
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A parallel plate capacitor of capacitance ' $C$ ' is connected to a battery and charged to a potential difference ' $V$ '. Another capacitor of capacitance 3 C is similarly charged to a potential difference 3 V . The charging battery is then disconnected and capacitors are connected in parallel to each other in such a way that positive terminal of one is connected to the negative terminal of the other. The final energy of the configuration is

A
$\frac{3}{2} \mathrm{~CV}^2$
B
$8 \mathrm{~CV}^2$
C
$\frac{13}{2} \mathrm{~CV}^2$
D
$18 \mathrm{~CV}^2$
3
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A tuning fork of frequency 340 Hz is vibrated just above a tube of 120 cm height. Water is slowly poured in the tube. What is the minimum height of water necessary for resonance?

A
45 cm
B
30 cm
C
35 cm
D
25 cm
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