NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 717  721 of 2184
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Question number: 717
» Experimental Skills » Vernier Callipers
Question
Two bodies of masses 2 kg and 4 kg are moving with velocities 2 m/s and 10 m/s respectively along same direction. Then the velocity of their center of mass will be
Choices
Choice (4)  Response  

a.  5.3 m/s 

b.  8.1 m/s 

c.  6.4 m/s 

d.  7.3 m/s 

Question number: 718
» Work, Energy and Power » Work Done
Question
The work done in lifting water from a well of depth 6 m using a bucket of mass 1.3 kg and volume 1 liter, will be
Choices
Choice (4)  Response  

a.  147 J 

b.  105.84 J 

c.  98 J 

d.  135.24 J 

Question number: 719
» Electromagnetic Induction & Alternating Currents » Self and Mutual Inductance
Question
If the current in the primary coil is reduced from 3.0 ampere to zero in 0.001 second, the induced e. m. f in the secondary coil is 1500 volt. The mutual inductance of the two coils will be
Choices
Choice (4)  Response  

a.  0.0005 H 

b.  0.005 H 

c.  0.05 H 

d.  0.5 H 

Question number: 720
» Experimental Skills » Screw Gauge
Question
The two particles X and Y, initially at rest, start moving towards each other under mutual attraction. If at any instant the velocity of X is V and that of Y is 2V, the velocity of their center of mass will be 3
Choices
Choice (4)  Response  

a.  V/2 

b.  0 

c.  2V 

d.  V 

Question number: 721
» Electromagnetic Induction & Alternating Currents » Alternating Currents
Question
The voltage across a pure inductor is represented by the following diagram. Which one of the following diagrams will represent the current?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
