Dual Nature Of Matter And Radiation Mcq in English

Dual Nature Of Matter And Radiation Mcq in English

Dual Nature Of Matter And Radiation Mcq in English | Class 12 Physics Mcq In English | Class 12 Dual Nature of Radiation and Matter MCQs | dual nature of radiation and matter important questions

हमलोग Dual Nature Of Matter And Radiation Mcq in English | Class 12 Physics Mcq In English के बारे स्टडी करेगे | Join Telegram For Fast Update :- Click Hare बोर्ड एग्जाम के लिए और अन्य स्टेट एग्जाम के लिए भी बहुत ही Important Objective Question पोस्ट किया गया है | आप सभी इस Objective Question को स्टडी करके अच्छे -अच्छे मार्क्स  लाने की प्रयाश करे | और इस एजुकेशन साईट के बारे में दोस्त को बतेये |

Dual Nature Of Matter And Radiation Mcq in English
Dual Nature Of Matter And Radiation Mcq in English

Dual Nature Of Matter And Radiation Mcq in English

1. Which one of the following is deflected in electric field ?
  • (A) Gamma rays
  • (B) X-rays.
  • (C) Ultraviolet rays
  • (D) Cathode rays
Show Answer
(D) Cathode rays
2. Wavelength of a particles of mass m moving with velocity V is
  • (A) λ = mV / h
  • (B) λ = h / mV
  • (C) λ = h. mV
  • (D) λ = mV / 2h
Show Answer
(B) λ = h / mV
3. Who established that electric charge is quantised ?
  • (A) J.J. Thomson
  • (B) William Crookes
  • (C) R.A. Millikan
  • (D) Wilhelm Rontgen
Show Answer
(C) R.A. Millikan
4. Cathode rays were discovered by
  • (A) Maxwell Clerk James
  • (B) Heinrich Hertz
  • (C) William Crookes
  • (D) J. J. Thomson
Show Answer
(C) William Crookes
5. The maximum value of photoelectric current is called
  • (A) base current
  • (B) saturation current
  • (C) collector current
  • (D) emitter current
Show Answer
(B) saturation current
6. Which of the following devices is sometimes called an electric eye?
  • (A) LED
  • (B) Photocell
  • (C) Integrated chip (IC)
  • (D) Solar cell
Show Answer
(B) Photocell
7. X-rays are
  • (A) deflected by an electric field
  • (B) deflected by a magnetic field
  • (C) deflected by both electric and magnetic fields
  • (D) not deflected by electric and magnetic fields
Show Answer
(D) not deflected by electric and magnetic fields
8. Which of the following radiations cannot eject photo electrons ?
  • (A) ultraviolet
  • (B) infrared
  • (C) visible
  • (D) X-rays
Show Answer
(B) infrared
9. A photocell converts light energy into
  • (A) electrical energy
  • (B) magnetic energy
  • (C) sound energy
  • (D) None
Show Answer
(B) magnetic energy
10. When light enters into glass its Wavelength
  • (A) Decreases
  • (B) Increases
  • (C) Remains the same
  • (D) None
Show Answer
(A) Decreases
11. The energy of emitted photo electron depends upon
  • (A) Intensity of light
  • (B) Wave length of light
  • (C) Work-function of metal
  • (D) None
Show Answer
(B) Wave length of light
12. The critical angle of light passing from glass to air is minimum for
  • (A) Red colours
  • (B) Green colour
  • (C) Yellow colour
  • (D) Violet colour
Show Answer
(D) Violet colour
13. Transverse nature of light is shown by
  • (A) Interference
  • (B) Reflection
  • (C) Polarisation
  • (D) Dispersion
Show Answer
(C) Polarisation
14. Kirchhoffe’s second law of conservation of
  • (A) charge
  • (B) energy
  • (C) momentum
  • (D) angular momentum
Show Answer
(B) energy
15. Life of a fossil in estimated by
  • (A) carbon dating
  • (B) X-ray
  • (C) laser
  • (D) none
Show Answer
(A) carbon dating

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Class 12 Physics Mcq In English | Related Post

[catlist id=237 numberposts=09 orderby=modified ]
Dual Nature Of Matter And Radiation Mcq in English | Class 12 Physics Mcq In English
Pattern BasedBihar Board, Patna
Class12th or Inter
StreamScience
CategoryClass 12 Physics Mcq
Chapter NameDual Nature Of Matter And Radiation
SubjectPhysics Class 12th
Class 12th English SummaryBSEB Class 12th English Summary
Class 10th Science All Chapter Objective Question
Click Hare
Type Of Question
Objective Question || 01 Marks
ScriptHindi And English Medium
Published OnBihari Academy
sarkari result
Updated: 06/09/2024 — 1:46 PM

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