1
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Graph shows the variation of de-Broglie wavelength $$(\lambda)$$ versus $$\frac{1}{\sqrt{V}}$$ where '$$V$$' is the accelerating potential for four particles A, B, C, D carrying same charge but of masses $$\mathrm{m_1, m_2, m_3, m_4}$$. Which on represents a particle of largest mass?

MHT CET 2023 12th May Evening Shift Physics - Dual Nature of Radiation Question 27 English

A
m$$_1$$
B
m$$_2$$
C
m$$_3$$
D
m$$_4$$
2
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

SI units of self inductance is

A
$$\frac{\mathrm{V}-\mathrm{A}}{\mathrm{S}}$$
B
$$\frac{\mathrm{V}}{\mathrm{A}-\mathrm{S}}$$
C
$$\frac{\mathrm{V}-\mathrm{S}}{\mathrm{A}}$$
D
$$\frac{\mathrm{A}}{\mathrm{V}-\mathrm{S}}$$
3
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When an inductor '$$L$$' and a resistor '$$R$$' in series are connected across a $$15 \mathrm{~V}, 50 \mathrm{~Hz}$$ a.c. supply, a current of $$0.3 \mathrm{~A}$$ flows in the circuit. The current differs in phase from applied voltage by $$\left(\frac{\pi}{3}\right)^c$$. The value of '$$R$$' is $$\left(\sin \frac{\pi}{6}=\cos \frac{\pi}{3}=\frac{1}{2}, \sin \frac{\pi}{3}=\cos \frac{\pi}{6}=\frac{\sqrt{3}}{2}\right)$$

A
$$10 \Omega$$
B
$$15 \Omega$$
C
$$20 \Omega$$
D
$$25 \Omega$$
4
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When an electron is accelerated through a potential '$$V$$', the de-Broglie wavelength associated with it is '$$4 \lambda$$'. When the accelerating potential is increased to $$4 \mathrm{~V}$$, its wavelength will be

A
$$\frac{\lambda}{4}$$
B
$$\frac{\lambda}{2}$$
C
$$\lambda$$
D
$$2 \lambda$$
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