Dual Nature of Radiation and Matter — Practice Quiz
Telangana Open School (TOSS) · Class 12 · Physics
Try a 4-question quiz on Dual Nature of Radiation and Matter for Telangana Open School (TOSS) Class 12 Physics: tap an answer to check it and see why.
Interactive on Super Tutor
Studying Dual Nature of Radiation and Matter? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for practice quiz and more.
Free trial, no card needed.
Quick Quiz: Dual Nature of Radiation and Matter
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
What is the phenomenon called when electrons are emitted from a metal surface when light of suitable frequency falls on it?
Who discovered the photoelectric effect?
In thermionic emission, electrons gain energy from:
The minimum energy required for an electron to escape from a metal surface is called:
Sample Questions
The photoelectric effect is instantaneous. What does this mean?
Show answer
Electrons are emitted immediately
Photoelectric emission occurs almost instantly when light hits the surface, with a time lag of about 10⁻⁹ seconds.
Which of the following metals has the lowest work function?
Show answer
Sodium
From the table, sodium has a work function of 2.5 eV, which is the lowest among the listed metals.
The stopping potential is the minimum retarding potential at which:
Show answer
Current becomes zero
Stopping potential is the voltage at which no photoelectrons reach the collector, so the current drops to zero.
Einstein proposed that light consists of discrete packets of energy called:
Show answer
Photons
Einstein introduced the concept of photons to explain the photoelectric effect.
+50 more questions on Dual Nature of Radiation and Matter (Telangana Open School (TOSS) Class 12 Physics)
Practise AllFrequently Asked Questions
What are the important topics in Dual Nature of Radiation and Matter for Telangana Open School (TOSS) Class 12 Physics?
How many practice questions are there for Dual Nature of Radiation and Matter?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Dual Nature of Radiation and Matter
Important Questions
Exam-style questions with answers
Revision Notes
Key points for last-minute revision
Formula Sheet
The chapter's formulas in one place
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect
Study Plan
Step-by-step plan for this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
For serious students
Get the full Dual Nature of Radiation and Matter chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for Telangana Open School (TOSS) Class 12 Physics. Free to start, no card needed.