Physics
1)The line perpendicular to the reflective surface is the ..........
  

2)Your image in a bathroom mirror results from_____
  

3)How does light normally travel?
  

4)What if you have an object 2.0 m from the concave mirror, and the image is 4.0 m from the mirror?
  

5)In a concave mirror, an object placed __________ will result in a virtual image.
  

6)Which type of mirror produces an image that is always erect, always the same height as the object, and always virtual?
  

7)__________ is located behind a convex mirror.
  

8)The image from a convex mirror will _________.
  

9)Light travels fastest through which among the following materials?
  

10)The SI unit of electric charge is __________
  

11)By convention, the charge on a glass rod that has been rubbed with silk is called
  

12)Two charged bodies having equal potential are connected through a conducting wire, in this case
  

13)The potential difference between two terminals can be measured by _________
  

14)The net charge flowing through a cross section of a conductor in unit time is known as______
  

15)Which of the following correctly represents the relation among Charge (Q), Potential difference (V) and Work done (W)
  

16)The voltmeter is always connected in _________ across the points between which the potential difference is to be measured.
  

17)How many electrons will be there in 1.6C charge?
  

18)A galvanometer is used to
  

19)An electric fuse is based on ________
  

20)A ball is thrown upwards vertically. What is the velocity of the ball at its highest point? (Take g = 9.8 m/s2) 
  

21)An object of mass 20 kg moves with uniform acceleration from rest to a speed of 2m/s in 20 secs. On average how much power is generated in 20 seconds duration.
  


  


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