Dual Nature of Matter and Radiation-Particle Nature of Light (AIIMS Physics): Questions 1 - 2 of 2

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Question number: 1

» Dual Nature of Matter and Radiation » Particle Nature of Light

Appeared in Year: 1998

MCQ▾

Question

Work function of a metal surface is ϕ=1.5eV . If a light of wavelength 5000 falls on it then the maximum K. E of ejected electron will be –

[AIPMT]

Choices

Choice (4) Response
a.

0eV

b.

1.2eV

c.

0.98eV

d.

0.45eV

Question number: 2

» Dual Nature of Matter and Radiation » Particle Nature of Light

MCQ▾

Question

If the work function of a metal is 2.1eV and the wavelength of incident photon is 5.2×107m , than what is the maximum kinetic energy of photo electrons?

Choices

Choice (4) Response
a.

4.5eV

b.

0.3eV

c.

1.3eV

d.

2.4eV

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