Physics · JEE

Dual Nature of Matter and Radiation Mock Test for JEE

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Q1PhysicsUnit 17: Dual Nature of Matter and Radiation

The incident photon involved in the photo-electric effect experiment

\nu>\nu_{o}

Q2PhysicsUnit 17: Dual Nature of Matter and Radiation

The work function of a substance is 4.0

e V

. The longest wavelength of light that can cause photo-electric emission from this substance is approximately

Q3PhysicsUnit 17: Dual Nature of Matter and Radiation

The sensor is exposed for

0.1 s

to a

200 W

lamp

10 m

away. The sensor has opening that is 20 mm in a diameter How many photons enter the sensor if the wavelength of light is 600 mm? (assume that all the energy of the lamp is given off as light).

Q4PhysicsUnit 17: Dual Nature of Matter and Radiation

The photoelectric effect proves that light consists of:

Q5PhysicsUnit 17: Dual Nature of Matter and Radiation

Work function is

Q6PhysicsUnit 17: Dual Nature of Matter and Radiation

The energy that should be added to an electron to reduce its de-Broglie wavelength from 1 nm to 0.5 nm is.

Q7PhysicsUnit 17: Dual Nature of Matter and Radiation

Assertion Mass of moving photon varies inversely as the wavelength. Reason Energy of the particle

=

Mass

\times

(speed of light)

^{2}

Q8PhysicsUnit 17: Dual Nature of Matter and Radiation

In a photoelectric effect, the anode potential is plotted against the plate current

Q9PhysicsUnit 17: Dual Nature of Matter and Radiation

The creation of voltage or electric current in a material upon exposure to light is termed as

Q10PhysicsUnit 17: Dual Nature of Matter and Radiation

If wavelength of photon and electron is same then ratio of total energy of electron to total energy of photon would be:

Q11PhysicsUnit 17: Dual Nature of Matter and Radiation

The major contribution of Sir C.V. Raman is:

Q12PhysicsUnit 17: Dual Nature of Matter and Radiation

The electricity produced by creating photo electrons is called:

Q13PhysicsUnit 17: Dual Nature of Matter and Radiation

Fill in the blanks: The

\ldots

tungsten is reduced by coating with barium oxide.

Q14PhysicsUnit 17: Dual Nature of Matter and Radiation

Maximum kinetic energy of the emitted photoelectrons depends upon

Q15PhysicsUnit 17: Dual Nature of Matter and Radiation

Which is the elementary quantum of energy?

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Frequently asked questions

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For a topic-level test, aim for 20–30 minutes. For a full subject mock, allow 60–90 minutes to mirror JEE timing.

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Aim for 70%+ accuracy initially, then push toward 85%+ as your exam date approaches. Review explanations for every wrong answer.

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