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General Science for RRB JE, NTPC Exam : Part 40 (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
straight line itna hi hai na?
Vineet Loomba
8 months ago
This is crash course ... U can watch detailed course for more lessons
Archana Goswami
8 months ago
actually there isn't have much time
Archana Goswami
8 months ago
won't this be enough?
MA
achaa hai question
Hemant Mishra
3 months ago
Thanks Md Aarif
sir Question to hingschool
  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. 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


  4. 3^T CTransvs laves Which of the following statement about sound and light waves is correct CCrest) A. Both sound and light waves are transverse B. Both sound and light waves are longitudinal C. Sound waves is transverse but light waves is CTHou (Long tudinal Waves) longitudinal (gafT TET ATTFsrafh FF (Rare faction) D. Sound waves is longitudinal but light waves Compression is transverse (gar 3FF


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


  6. An object and a screen are separated by 25 cm. When a convex lenses is placed between them at a distance of 5 cm. From the object, a sharp image is formed on the screen. The focal length of the lenses is? A. 20 B. 6.67 C.4 D.2


  7. An object and a screen are separated by 25 cm When a convex lenses is placed between them at a distance of 5 cm. From the object, a sharp image is formed on the screen. The focal length of the lenses is ? A. 20 B. 6.67 C.4 D.2


  8. If an object is placed at the center of curvature of a concave mirror, the position of image is? A. At the principal focus (gTT) B. Between the principal focus and the center of C. Centre of curvature ( hAT D. Beyond center of curvature ) haT H3TT)


  9. An object is placed before a convex mirror. The image is? A. Real B. Virtual C.May be real or virtual depending upon distance of the object from the mirror D.Magnified