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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

Photons of frequency v are incident on the surfaces of two metals A and B of threshold frequencies \(\frac{v}{2}\) and \(\frac{v}{3}\) . The ratio of maximum kinetic energy of electrons emitted from metal A to that from metal B is :

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Question 2 of 5
CBSE Past Year 2026

Light of which of the following colours will have the maximum energy in a photon associated with it ?

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Question 3 of 5
CBSE Past Year 2026

In an experiment on photoelectric emission, the intensity of incident radiation is halved keeping its frequency constant. As a result :

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Question 4 of 5
CBSE Past Year 2026

Radiation of wavelength 331 nm irradiates the following metals :

Diagram for question 9

Which of the following statements is correct ?

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Question 5 of 5
CBSE Past Year 2026

Assertion (A) : Photoelectric current depends upon the intensity of the incident radiation.

Reason (R) : Stopping potential is independent of the intensity of the incident radiation.

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