1
MHT CET 2023 12th May Evening Shift
+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?

A
m$$_1$$
B
m$$_2$$
C
m$$_3$$
D
m$$_4$$
2
MHT CET 2023 12th May Evening Shift
+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
$$2 \lambda$$
3
MHT CET 2023 12th May Morning Shift
+1
-0

Radiations of two photons having energies twice and five times the work function of metal are incident successively on metal surface. The ratio of the maximum velocity of photo electrons emitted in the two cases will be

A
1 : 1
B
1 : 2
C
1 : 3
D
1 : 4
4
MHT CET 2023 12th May Morning Shift
+1
-0

When light of wavelength $$\lambda$$ is incident on a photosensitive surface the stopping potential is '$$\mathrm{V}$$'. When light of wavelength $$3 \lambda$$ is incident on same surface the stopping potential is $$\frac{\mathrm{V}}{6}$$. Then the threshold wavelength for the surface is

A
$$2 \lambda$$
B
$$3 \lambda$$
C
$$4 \lambda$$
D
$$5 \lambda$$
EXAM MAP
Medical
NEET