Embibe Experts Solutions for Chapter: Dual Nature of Radiation and Matter, Exercise 1: Exercise

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Embibe Experts Physics Solutions for Exercise - Embibe Experts Solutions for Chapter: Dual Nature of Radiation and Matter, Exercise 1: Exercise

Attempt the free practice questions on Chapter 11: Dual Nature of Radiation and Matter, Exercise 1: Exercise with hints and solutions to strengthen your understanding. Physics Crash Course (Based on Revised Syllabus-2023) solutions are prepared by Experienced Embibe Experts.

Questions from Embibe Experts Solutions for Chapter: Dual Nature of Radiation and Matter, Exercise 1: Exercise with Hints & Solutions

EASY
12th Uttar Pradesh Board
IMPORTANT

State the objective of Davisson and Germer experiment.

MEDIUM
12th Uttar Pradesh Board
IMPORTANT

First order diffraction is observed in Davisson and Germer experiment. Accelerating voltage in 54 volt. If the distance between reflecting surfaces of the used Ni crystal is 0.92 Å, find out the angle of diffraction.

EASY
12th Uttar Pradesh Board
IMPORTANT

State importance of Davisson and Germer experiment.

MEDIUM
12th Uttar Pradesh Board
IMPORTANT

Describe the Davisson and Germer experiment.

EASY
12th Uttar Pradesh Board
IMPORTANT

The following graph shows the variation of stopping potential V 0 with frequency v of the incident radiation for two photosensitive metals P and Q:

Question Image
Which metal,

(i) has smaller threshold wavelength.

(ii) has smaller kinetic energy.

EASY
12th Uttar Pradesh Board
IMPORTANT

What is photo-electric effect?

EASY
12th Uttar Pradesh Board
IMPORTANT

For a certain metal threshold wavelength is 5675 A°. Calculate the work function of the metal. h=6.63 × 10-34J s

HARD
12th Uttar Pradesh Board
IMPORTANT

When a metallic surface is illuminated with light of frequency 8.5×1014 Hz the maximum kinetic energy of emitted electrons is 0.52 eV. When the same surface is illuminated by light of frequency 12.0×1014 Hz the maximum kinetic energy of emitted electrons is 1.97 eV. Find out work function of the metal.