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JEE Dual Nature of Matter PYQs with Solutions

20 previous year questions from Dual Nature of Matter (JEE Main & Advanced NSEP) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

20 questionsNSEPAnswers + solutions

About Dual Nature of Matter PYQs

Dual Nature of Matter has 20 previous year questions in the Quantrex Academy JEE Main & Advanced NSEP bank. The 20 questions in this list come from Olympiad workbook (20). Each question opens on its own page with the options, the correct answer and the worked solution where available.

Dual Nature of Matter questions with solutions

Ultraviolet light of wavelength 300 nm and intensity 1 ~W / m^2 falls on the surface of a photosensitive material. If one percent of the incident photons produce photoelectrons

Olympiad workbook Solution View → 2

In an X ray tube the electrons are expected to strike the target with a velocity that is 10 \% of the velocity of light. The applied voltage should be

Olympiad workbook Solution View → 3

Which of the following curves represents spectral distribution of energy of black body radiation?

Olympiad workbook Solution View → 4

The force of attraction between the positively charged nucleus and the electron in a hydrogen atom is given by f=k (e^2)/(r^2) . Assume that the nucleus is fixed. The electron

Olympiad workbook Solution View → 5

The photoelectric threshold wavelength of tungsten is 230 nm . The energy of electrons ejected from its surface by ultraviolet light of wavelength 180 nm is:

Olympiad workbook Solution View → 6

The energy of the characteristic X-ray photon in a Coolidge tube comes from

Olympiad workbook Solution View → 7

The maximum wavelength that can ionize a hydrogen atom initially in the ground state is

Olympiad workbook Solution View → 8

The wavelength of the waves associated with a proton and a photon are the same. Therefore, the two have equal

Olympiad workbook Solution View → 9

The mass of an electron can be expressed as(where c is speed of light in vacuum) (where c is speed of light in vacuum)

Olympiad workbook Solution View → 10

In an experiment on photoelectric effect, the slope of straight line graph between the stopping potential and the frequency of incident radiation gives

Olympiad workbook Solution View → 11

A number of identical absorbing plates are arranged in between a source of light and a photo cell. When there is no plate in between, the photo current is maximum. Under the

Olympiad workbook Solution View → 12

In a nuclear reaction, two photons each of energy 0.51 MeV are produced by electron-positron annihilation. The wavelength associated with each photon is

Olympiad workbook Solution View → 13

The phenomenon inverse to photo electric effect is

Olympiad workbook Solution View → 14

A source emits photons of energy 5 eV which are incident on a metallic sphere of work function 3.0 eV . The radius of the sphere is r=8 × 10^ -3 ~m . It is observed that after

Olympiad workbook Solution View → 15

Obtain the value of e^2 2 ε_0 hc

Olympiad workbook Solution View → 16

A hydrogen atom ( M_ I I =1.67 × 10^ -23 ~kg ), initially at rest, emits a photon and goes from the excited state n=5 to the ground state. The recoil speed of the atom is nearly

Olympiad workbook Solution View → 17

In an experimental set up to study the photoelectric effect a point source of light of power 3.2 mW is used. The source emits mono energetic photons of energy 5 eV and is located

Olympiad workbook Solution View → 18

Continuous and Characteristic X - rays are produced when electron beam accelerated by a high potential difference of V volt (say) is made to hit the metallic target such as

Olympiad workbook Solution View → 19

A parallel beam, of 6.0 mW radiation of wavelength 200 nm and of area of cross-section 1.0 ~mm^2 , falls normally on a plane metallic surface. If the radiations are completely

Olympiad workbook Solution View → 20

During the processes of annihilation of a stationary electron of mass m_0 with a stationary positron of equal mass, a radiation is emitted. The wavelength of the resulting

Olympiad workbook Solution View →

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Main Dual Nature of Matter list

The larger JEE Dual Nature of Matter list is under Physics (419 questions).

Related JEE NSEP chapters

Ray Optics (48)Electrostatics (33)Rotational Motion (32)Current Electricity (25)Waves and Sound (25)Mechanical Properties of Fluids (24)Magnetic Effects of Current (23)Work, Power and Energy (18)Semiconductors (17)Oscillations (17)Thermodynamics (17)Thermal Properties of Matter (15)

Dual Nature of Matter in other exams

NEET Dual Nature of Matter (377)BITSAT Dual Nature of Matter (29)