NEET Physics: Questions 419  423 of 2142
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Question number: 419
» Electrostatics » Forces Between Two Point Charges
Assertion (Ꭺ)
Direction of electric field at a point signifies direction of force experienced by a point charge placed at that point.
Reason (Ꭱ)
Electric field is a vector quantity.
Choices
Choice (4)  Response  

a.  Ꭺ is false but Ꭱ is true 

b.  Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ 

c.  Both Ꭺ and Ꭱ are false 

d.  Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ 

Question number: 420
» Laws of Motion » Force and Inertia
Question
A body of mass m tied at the end of a string of length i is projected with velocity , at what height will it leave the circular path –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 421
» Electrostatics » Equipotential Surfaces
Question
A uniform electric field pointing in positive x  direction exists in a region. Let A be the origin, B be the point on the x  axis at x =+1 cm and C be the point on the y  axis at y =+1 cm. Then the potentials at the points A, B and C satisfy
Choices
Choice (4)  Response  

a.  V _{A} < V _{B} 

b.  V _{A} > V _{C} 

c.  V _{A} < V _{C} 

d.  V _{A} > V _{B} 

Question number: 422
» Properties of Solids & Liquids » Specific Heat Capacity
Question
The specific heat of a solid is determined by the method known as?
Choices
Choice (4)  Response  

a.  The method of mixture 

b.  The method of fusion 

c.  The method of vaporization 

d.  The method of cooling 

Question number: 423
» Electrostatics » Electric Charges
Assertion (Ꭺ)
Electrons move away from a low potential to high potential region.
Reason (Ꭱ)
because electrons have negative charge
Choices
Choice (4)  Response  

a.  Ꭺ is false but Ꭱ is true 

b.  Both Ꭺ and Ꭱ are false 

c.  Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ 

d.  Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ 
