Physics General

Q: The ratio of output work per cycle to input energy per cycle is called :

(a) :  Pressure
(b) :  Efficiency
(c) :  Internal energy
(d) :  Entropy
(e) :  None of the Above
Answer:  Efficiency
Explanation:  

Q: A magnifier gives an image which is :

(a) :  Virtual,erect
(b) :  Real,inverted
(c) :  Real,erect
(d) :  Virtual,inverted
(e) :  None of the Above
Answer:  Virtual,erect
Explanation:  

Q: In AC circuit elements are :

(a) :  R and L
(b) :  Battery
(c) :  R and C
(d) :  R,L and C
(e) :  None of the Above
Answer:  Battery
Explanation:  

Q: Which one of the following is not a base unit :

(a) :  Watt
(b) :  Candela
(c) :  Kelvin
(d) :  Ampere
(e) :  None of the Above
Answer:  Candela
Explanation:  

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