• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar
  • Skip to footer

CBSE Tuts

CBSE Maths notes, CBSE physics notes, CBSE chemistry notes

  • NCERT Solutions
    • NCERT Solutions for Class 12 English Flamingo and Vistas
    • NCERT Solutions for Class 11 English
    • NCERT Solutions for Class 11 Hindi
    • NCERT Solutions for Class 12 Hindi
    • NCERT Books Free Download
  • TS Grewal
    • TS Grewal Class 12 Accountancy Solutions
    • TS Grewal Class 11 Accountancy Solutions
  • CBSE Sample Papers
  • NCERT Exemplar Problems
  • English Grammar
    • Wordfeud Cheat
  • MCQ Questions

NEET Physics Chapter Wise Mock Test – Matter Waves

Contents

NEET Physics Chapter Wise Mock Test – Matter Waves

Question 1:
Nuclear radii may be measured by scattering high energy electrons from nuclei. What is the de-broglie wavelength for 200 MeV electrons
(a) 8.28 fm
(b) 7.98 fm
(c) 6.45 fm
(d) 6.20 fm

Question 2:
A particle is dropped from a height H. The de-Broglie wavelength of the particle as a function of height is proportional to
(a) H
(b) H1/2
(c)H0
(d) H-1/2

Question 3:
Monochromatic light of frequency 6.0x 1014 Hz is produced by a laser. The power emitted is 2 x 10-3W. The number of photons emitted, on the average by the source per second is
(a) 5 x 1015
(b) 5 x 1016
(c) 5×1017
(d) 5 x 1014

Question 4:
If an electron and a proton have the same de-Broglie wavelength, then the kinetic energy of the electron is
(a) zero
(b) less than that of proton
(c) more than that of a proton
(d) equal to that of proton

Question 5:
The de-Broglie wavelength of a proton. (charge = 1.6×10-19 C, m =1.6 x10-27 kg) accelerated through a potential difference of 1 kV is
(a) 600Å
(b) 0.9x 10-12 m
(c) 7Å
(d) 0.9 nm

Question 6:
If α, β and γ rays carry same momentum which has the longest wavelength?
(a) α rays
(b) β rays
(c) γ rays
(d) All have same wavelength

Question 7:
What is de-Broglie wavelength of a dust particle of mass 1 x 10-9 kg drifting with a speed of 2.2 m/s?
(a) 1.1 x 10-32 m
(b) 3.01 x 10-25 m
(c) 1.1 x 10-3 m
(d) 3.01 x 10-2 m

Question 8:
NEET Physics Chapter Wise Mock Test - Matter Waves 1

Question 9:
The de-Broglie wavelength of 1 MeV proton is
(a) 6.63 x 10-34 m
(b) 3.33 x 10-30m
(c) 2.32 x 10-20m
(d) 2.86 x 10-14m

Question 10:
The de-Broglie wavelength of a bus moving with speed v is λ. Some passengers left the bus at a stoppage. Now, when the bus moves with twice its initial speed, its kinetic energy is found to be twice its initial value. The de-Broglie wavelength will now
(a) λ
(b) 2λ
(c) λ/2
(d) λ/4

Question 11:
Energy of neutrofi in eV whose de-Broglie wavelength is 1Å
(a) 1.674 x 10-27 eV
(b) 8.13 x 10-2 eV
(c) 6.62 x 10-22 eV
(d) 3.23x 10-2 eV

Question 12:
NEET Physics Chapter Wise Mock Test - Matter Waves 2

Question 13:
An α-particle and a deuteron are moving with the same kinetic energy. What will be the ratio of their de-Broglie wavelengths?
(a) 1/√2
(b) 2
(c) 1
(d) √2

Question 14:
What will be the number of photons emitted per second by a 10W sodium vapour lamp assuming that 90% of. the consumed energy is converted into light? Wavelength of sodium light is 590 nm, h=6.63×10-34 J-s.
(a) 0.267×1018
(b) 0.267×1019
(c) 0.267×1020
(d) 0.267×1017

Question 15:
If the energy of photons corresponding to the wavelength of 6000Å is 3.2 x 10-19 J, the photon energy for a wavelength of 4000Å will be
(a) 1.11 x 10-19 J
(b) 2.22x 10-19 J
(c) 4.40 x 10-19 J
(d) 4.80 x 10-19 J

Question 16:
In the Davisson Germer experiment, if the incident beam consists of electrons, then the diffracted beam consists of
(a) protons
(b) neutrons
(c) α-particles
(d) electrons

Question 17:
X-rays of wavelength λ0 = 0.200 nm are scattered from a block of material. The scattered X-rays are observed at an angle of 45° to the incident beam. Calculate their wavelength.
(a) 0.300700 nm
(b) 0.100710 nm
(c) 0.200710 nm
(d) 0.400710 nm

Question 18:
NEET Physics Chapter Wise Mock Test - Matter Waves 3

Question 19:
The wavelength of a photon needed to remove a proton from a nucleus which is bound to the nucleus with 1 MeV energy is nearly
(a) 1.2nm
(b) 1.2×10-3 nm
(c) 1.2 x10-6nm
(d) 1.2×101 nm

Question 20:
Monochromatic light of wavelength 3000Å is incident on a surface area 4 cm2. If intensity of light is 150 mWm-2, then rate at which photons strike the target is .
(a) 3 x 1010 s-1
(b) 9x 1013 s-1
(c) 7 x 1015 s-1
(d) 6x 1019 s-1

Question 21:
According to the Moseley’s law, the frequency of characteristic X-rays is related to the atom in number of target element as
(a) Z
(b) Z2
(c) Z-1
(d) Z-2

Question 22:
In Thomson’s experiment for the measurement of elm of an electron is 105 Vm-1 and the magnetic field is 10-2T. The beam was originally accelerated through a potential difference of 285 V. The value of specific charge of electron will be
(a) 1.67 x 1011 Ckg-1
(b) 1.47 x 1011 Ckg-1
(c) 1.74x 1011 Ckg-1
(d) None of these

Question 23:
Energy from the sun is received on the earth at the rate of 2 cal per cm2 per min. If average wavelength of solar light be taken at 5500Å, then how many photons are received on the earth per cm2 per min?
(a) 1.5 x 1013
(b) 2.9 x102
(c) 2.3 x1019
(d) 1.5 x 103

Question 24:
An electron is moving with an initial velocity v = v0i and is in a magnetic field B = B0j . Then, it’s de-Broglie wavelength
(a) remains constant
(b) increases with time
(c) decreases with time
(d) increases and decreases periodically

Question 25:
NEET Physics Chapter Wise Mock Test - Matter Waves 4

Question 26:
The momentum of a photon of energy 1 MeV in kgms-1 will be
(a) 0.33×106
(b) 7x 10-24
(c) 10-22
(d) 5 x 10-22

Question 27:
The X-ray tube is operated at 50 kV. The minimum wavelength produced, is
(a) 0.5Å
(b) 0.75Å
(c) 0.25Å
(d) 1.0Å

Question 28:
A radiation energy E falls normally on a perfectly reflecting surface. The momentum transferred to the surface is (C = Velocity of light)
(a) E/C
(b) 2E/C
(c) 2E/C2
(d) E/C2

Question 29:
A certain metallic surface is illuminated with monochromatic light of wavelength λ. The stopping potential for photoelectric current for this light is 3V0. If the same surface is illuminated with light of wavelength 2λ, the stopping potential is V0. The threshold wavelength for this surface for photoelectric effect is
(a) 6λ
(b) 4λ
(c) λ/4
(d) λ/6

Question 30:
A parallel beam of fast moving electrons is incident normally on a narrow slit. A fluorescent screen is placed at a large distance from the slit. If the speed of the electrons is increased, then which of the following statements is correct?
(a) Diffraction pattern is not observed on the screen in the case of electrons
(b) The angular width of the central maximum of the diffraction pattern will increase
(c) The angular width of the central maximum will be decrease
(d) The angular width of the central maximum will be unaffected

Question 31:
Assertion(A):
X-ray are used for studying the structure of crystals.
Reason(R):
The difference between the atoms of crystal is of the order of wavelength of X-rays.
(a) If both assertion and reason are true and reason is the correct explanation of assertion
(b) If both assertion and reason are true but the reason is not the correct explanation of assertion
(c) If assertion is true but reason is false
(d) If both assertion and reason are false

Question 32:
If the end A of a wire is irradiated with α-rays and the other end B is irradiated with β-rays, then
(a) a current will flow from A to B
(b) there will be no current in the wire
(c) a current will flow from B to A
(d) a current will flow from each end of the mid-point of the wire

Question 33:
What should be the velocity of an electron, so that its momentum becomes equal to that of a photon of wavelength 52000Å?
(a) 700 m/s
(b) 1000 m/s
(c) 1400 m/s
(d) 2800 m/s

Question 34:
What kV potential is to be applied on X-ray tube, so that minimum wavelength of emitted X-ray may be 1Å (h = 6.6 x 10-34 J-s)
(a) 12.42 kV
(b) 12.84 kV
(c) 11.98 kV
(d) 10.78 kV

Question 35:
Solar radiation is
(a) transverse electromagnetic wave
(b) longitudinal electromagnetic wave
(c) stationary wave
(d) None of the above

Answers:

NEET Physics Chapter Wise Mock Test - Matter Waves 5

Hints And Solutions:

NEET Physics Chapter Wise Mock Test - Matter Waves 6
NEET Physics Chapter Wise Mock Test - Matter Waves 7
NEET Physics Chapter Wise Mock Test - Matter Waves 8
NEET Physics Chapter Wise Mock Test - Matter Waves 9
NEET Physics Chapter Wise Mock Test - Matter Waves 10
NEET Physics Chapter Wise Mock Test - Matter Waves 11
NEET Physics Chapter Wise Mock Test - Matter Waves 12
NEET Physics Chapter Wise Mock Test - Matter Waves 13
NEET Physics Chapter Wise Mock Test - Matter Waves 14
NEET Physics Chapter Wise Mock Test - Matter Waves 15

PhysicsChemistryBiology

Primary Sidebar

NCERT Exemplar problems With Solutions CBSE Previous Year Questions with Solutoins CBSE Sample Papers
  • The Summer Of The Beautiful White Horse Answers
  • Job Application Letter class 12 Samples
  • Science Lab Manual Class 9
  • Letter to The Editor Class 12 Samples
  • Unseen Passage For Class 6 Answers
  • NCERT Solutions for Class 12 Hindi Core
  • Invitation and Replies Class 12 Examples
  • Advertisement Writing Class 11 Examples
  • Lab Manual Class 10 Science

Recent Posts

  • Understanding Diversity Question Answer Class 6 Social Science Civics Chapter 1 NCERT Solutions
  • Our Changing Earth Question Answer Class 7 Social Science Geography Chapter 3 NCERT Solutions
  • Inside Our Earth Question Answer Class 7 Social Science Geography Chapter 2 NCERT Solutions
  • Rulers and Buildings Question Answer Class 7 Social Science History Chapter 5 NCERT Solutions
  • On Equality Question Answer Class 7 Social Science Civics Chapter 1 NCERT Solutions
  • Role of the Government in Health Question Answer Class 7 Social Science Civics Chapter 2 NCERT Solutions
  • Vital Villages, Thriving Towns Question Answer Class 6 Social Science History Chapter 9 NCERT Solutions
  • New Empires and Kingdoms Question Answer Class 6 Social Science History Chapter 11 NCERT Solutions
  • The Delhi Sultans Question Answer Class 7 Social Science History Chapter 3 NCERT Solutions
  • The Mughal Empire Question Answer Class 7 Social Science History Chapter 4 NCERT Solutions
  • India: Climate Vegetation and Wildlife Question Answer Class 6 Social Science Geography Chapter 8 NCERT Solutions
  • Traders, Kings and Pilgrims Question Answer Class 6 Social Science History Chapter 10 NCERT Solutions
  • Environment Question Answer Class 7 Social Science Geography Chapter 1 NCERT Solutions
  • Understanding Advertising Question Answer Class 7 Social Science Civics Chapter 7 NCERT Solutions
  • The Making of Regional Cultures Question Answer Class 7 Social Science History Chapter 9 NCERT Solutions

Footer

Maths NCERT Solutions

NCERT Solutions for Class 12 Maths
NCERT Solutions for Class 11 Maths
NCERT Solutions for Class 10 Maths
NCERT Solutions for Class 9 Maths
NCERT Solutions for Class 8 Maths
NCERT Solutions for Class 7 Maths
NCERT Solutions for Class 6 Maths

SCIENCE NCERT SOLUTIONS

NCERT Solutions for Class 12 Physics
NCERT Solutions for Class 12 Chemistry
NCERT Solutions for Class 11 Physics
NCERT Solutions for Class 11 Chemistry
NCERT Solutions for Class 10 Science
NCERT Solutions for Class 9 Science
NCERT Solutions for Class 7 Science
MCQ Questions NCERT Solutions
CBSE Sample Papers
NCERT Exemplar Solutions LCM and GCF Calculator
TS Grewal Accountancy Class 12 Solutions
TS Grewal Accountancy Class 11 Solutions