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General Science for RRB JE, NTPC Exam : Part 39 (in Hindi)
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Hemant Mishra is teaching live on Unacademy Plus

Hemant Mishra
Cleared RRB Clerk , SBI Clerk pre, NTPC 2016, 1 year experience in software developing along with 5 year Experience in Teaching .

U
Unacademy user
sir ji add some lecture please
upssc chakbandi lekhpal ke liye class nhi chalti h kya
Right Answer :- Total Infernal Reflection 👌
AS
Total Internal Reflection
  1. RRB JE 2019 O ^ NTPC 2019, SSC CGL 2019 SCIENCE


  2. HELLO 2 k060 275.5k views Myser Hemant Mishra studyadda1988 Follow me at Unacademy for Hemant Mishra ducator since October 2017 Math Reasoning General science General knowledge r 1. Pate 2 Review 3. Share Current affairs of Railway Exams 4 Erroll 5. Save unacacemy


  3. Who got the first Nobel Prize in Physics? A. Wilhelm Conrad Rontgen B. Jacobus Henricus van 't Hoff C.Emil Adolf von Behring D.Sully Prudhomme


  4. Who got the first Nobel Prize in Physics? A. Wilhelm Conrad Rontgen B. Jacobus Henricus van 't Hoff C. Emil Adolf von Behring D.Sully Prudhomme


  5. What is the amount of nitrogen in the atmosphere? A. 78.08 B. 20.95 . 0.93 D.0.03


  6. What is the amount of nitrogen in the atmosphere? A. 78.08 B. 20.95 C.0.93 D.0.03


  7. Blackboard appears black because it? A. Reflects all colours (HT- Tafaa RT ) B. Does not reflecting any colours (fhH Tafaa C. Absorbs black colour (ch D. Reflects black colour ( T mafaa hrTE) r tT TTEfaa HTA )


  8. We see identical image of the object in the mirror because of? A. Reflection Tre ) B. Refraction ( + ) C. Dispersion D. Diffraction


  9. C Reflection L SRO We see identical image of the object in the mirror because a 0 A. Reflection ( ) B. Refraction (3 ) C. Dispersion (fad UT) D. Diffraction (aa) 2 (Kaleidoscope) (Peiscope


  10. An endoscope used by doctors for examples the inside of patient's stomach works on the principal of? A. Reflection of light (T TTT ) B. Dispersion of light (T) C. Refraction of light(ThTET AT ) D. Total internal reflection of light (TAM 3TATe Tar


  11. Which of the following statement about sound and light waves is correct? A. Both sound and light waves are transverse (a Tartatit B. Both sound and light waves are longitudinal (af77 ThTT C. Sound waves is transverse but light waves is longitudinal (a D.Sound waves is longitudinal but light waves is transverse( gaf


  12. The speed of sound in air is about? A.30 m/s B. 330 m/s C.5000 m/s D. 1500 m/s