AIIMS (All India Institute of Medical Sciences) Physics: Questions 376  380 of 500
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Question number: 376
» Work, Energy and Power » Kinetic Energy
Question
A body of mass 10 kg has momentum of. When a force of 0.4 N is applied on it for 15 seconds, what is the change in its kinetic energy –
Choices
Choice (4)  Response  

a.  10.8 J 

b.  5.0 J 

c.  8.2 J 

d.  15.2 J 

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Question number: 377
» Electromagnetic Induction & Alternating Currents » Self and Mutual Inductance
Question
The of mutual inductance of two coils when magnetic flux changes by and current changes by 0.02 A is –
Choices
Choice (4)  Response  

a.  6 H 

b.  12 H 

c.  9 H 

d.  3 H 

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Question number: 378
» Dual Nature of Matter and Radiation » BlackBody Radiation
Question
A black body, at a temperature of 240°C, radiates heat at a rate of. When its temperature is raised to 750°C, the heat radiated by it in will be closest to –
Choices
Choice (4)  Response  

a.  380 

b.  260 

c.  480 

d.  140 

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Question number: 379
Question
A force newton acts on a particle whose position vector with respect to origin O is Find the magnitude and direction of the torque.
Choices
Choice (4)  Response  

a.  Magnitude 21 Nm, direction along the negative z – axis 

b.  Magnitude 31 Nm, direction along the positive z – axis 

c.  Magnitude 21 Nm, direction along the positive z – axis 

d.  Magnitude 31 Nm, direction along the negative z – axis 

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Question number: 380
» Kinematics » Motion in a Plane
Question
Fine the distance covered by a particle in 7 sec whose acceleration is. Assume that at.
Choices
Choice (4)  Response  

a.  89.8 m 

b.  103.4 m 

c.  72.5 m 

d.  60.2 m 

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