Dual Nature of Matter and Radiation (AIIMS (All India Institute of Medical Sciences) Physics): Questions 13 - 17 of 27

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Question number: 13

» Dual Nature of Matter and Radiation » Black-Body Radiation

MCQ▾

Question

A black body, at a temperature of 240°C, radiates heat at a rate of. When its temperature is raised to 750°C, the heat radiated by it in will be closest to –

Choices

Choice (4) Response

a.

380

b.

260

c.

480

d.

140

Question number: 14

» Dual Nature of Matter and Radiation » Photoelectric Effect

Appeared in Year: 1999

MCQ▾

Question

Light of wavelength in Photoelectric effect gives electron of maximum Kinetic Energy . If wavelength change to then maximum kinetic energy of emitted electrons will be – [AIPMT]

Choices

Choice (4) Response

a.

Greater than 0.5 eV

b.

Less than 0.5 eV

c.

Photoelectric effect does not occurs

d.

0.5 eV

Question number: 15

» Dual Nature of Matter and Radiation » Einstein's Photoelectric Equation

Appeared in Year: 1993

MCQ▾

Question

The wavelength of a photon is . What is the frequency of photon: [AIPMT]

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 16

» Dual Nature of Matter and Radiation » De-Broglie Relation

MCQ▾

Question

A proton moves on a circular path of radius in a perpendicular magnetic field of . The De Broglie wavelength associated with the proton will be –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 17

» Dual Nature of Matter and Radiation » Photoelectric Effect

Appeared in Year: 2009

MCQ▾

Question

Monochromatic light of wavelength is produced by a helium neon laser. The power emitted is . The number of photons arriving per second on the average at a target irradiated by this beam is –

[AIPMT]

Choices

Choice (4) Response

a.

b.

c.

d.

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