Physics Quiz-Part-1-Favsol

 
Physics Quiz-Part-1-Favsol

Physics Quiz  Part-1

Q1. What is measured by the Hydrophone?
A : Hydrophone measure Sound under water

Q2. Who discovered X-Ray?
A : Roentgen

Q3. The instrument used  to obtain a magnified view of small object is___
A : Microscope

Q4. Who invented Telegraph?
A : Samuel  Morse

Q5. Which electronic device is used to convert AC voltage into DC voltage?
A : Rectifier

Q6. Why the core of a Transformer is Laminated?
A : To minimize the energy loss due to eddy currents

Q7. On which principle does the a Tube light works on?
A : Discharge of electrons through gases

Q8. What is the output of a Dynamo  using a split ring commutator?
A : Fluctuating DC

Q9. If you were  to measure the strength of a current , which instrument would you use?
A : Ammeter

Q10. What is  measured by a Galvanometer?
A : Electric current of Low magnitude

Q11.  What is the SI unit of electric charge?
A : Coulomb

Q12. Which device is used to measure the electrical Power?
A : Dynamometer

Q13. Why electric fuse wire is made of Alloys?
A : Because of Low melting point

Q14. On which principle does a Periscope working based on?
A : Reflection & Interference

Q15. When dispersion of white light takes place through a prism, the maximum deviation is suffered by which colour?
A : Violet

Q16. On what factor does the dispersion produced by a Prism depends on?
A: Its Refracting angle

Q17. What does Electricity produced from falling water known as?
A : Hydroelectricity

Q18. Which colour have the shortest wavelength in the visible spectrum?
A : Violet

Q19. Rainbow is formed due to a combination of ___
A : Total Internal Reflection & dispersion

Q20. Why does the Sun appears reddish during the rising and setting time?
A : Because lighter of shorter wavelengths are scattered to a greater extent than than the longer wavelengths by the atmosphere

Q21. Efficient working of optical fibre is dependent on which characteristic?
A : Interference

Q22. What is the type of mirror used in the Viewfinders, used in automobiles to locate the position of the vehicles behind?
A : Convex mirror

Q23. Panchromatic photographic film is sensitive to which colour?
A : Entire visible spectrum

Q24. What type of mirror is used in vehicles as Rear view mirror?
A : Convex mirror

Q25. What type of image is produced by a Slerioscopic camera?
A : 3D appearance



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