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CBSE Past Year MCQ Quiz

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Chapter 11 - Dual Nature of Radiation and Matter | 5 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 480
Question 1 of 5
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Question 1 of 5
CBSE Past Year 2026

The momentum of a photon associated with a microwave of wavelength 4·00 cm is :

Select one option. Answers are shown after the test.
Question 2 of 5
CBSE Past Year 2026

The kinetic energy of a charged particle is increased to four times of its initial value. The de Broglie wavelength associated with the particle will :

Select one option. Answers are shown after the test.
Question 3 of 5
CBSE Past Year 2026

While studying photoelectric emission from a given surface, the wavelength of the incident radiation is changed from 600 nm to 400 nm, keeping the intensity of radiation the same. Then :

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Question 4 of 5
CBSE Past Year 2026

Radiation of wavelength 200 nm is incident on a photosensitive surface of work function 4·2 eV. The kinetic energy of fastest photoelectrons emitted from this surface will be close to :

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Question 5 of 5
CBSE Past Year 2026

Assertion (A) : If accelerated electrons are passed through a narrow slit, a diffraction pattern is observed.

Reason (R) : Electrons behave as both particles and waves.

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