a2zinterviews

13.	Decibel is used to measure
	A.  Sound intensity
	B.  Light intensity
	C.  Magnitude of earthquake
	D.  None of the above

Answer

Ans: A Sound intensity

14.	Which of the following is true when the cells are connected in series?
	A.  The emf increases
	B.  The emf decreases
	C.  Current capacity increases
	D.  Current capacity decreases

Answer

Ans: A The emf increases

15.	In automatic wrist watches energy is provided by
	A.  Manual binding
	B.  Different movements of our hand
	C.  Battery
	D.  Liquid crystal

Answer

Ans: B Different movements of our hand

16.	Richter scale is used for measuring
	A.  Intensity of light
	B.  Velocity of sound
	C.  Intensity of sound
	D.  Amplitude of seismic waves

Answer

Ans: D Amplitude of seismic waves