AIIMS Physics: Questions 386  390 of 500
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Question number: 386
» Gravitation » Gravitational Acceleration
Question
If the radius of a planet is R and density of same planet is , another planet having radius and density and respectively; then the ratio of accelerations due to gravity of these both planet is –
Choices
Choice (4)  Response  

a. 
 
b. 
 
c.  4  
d.  6 
Question number: 387
» Kinematics » Motion in a Straight Line
Question
How far will a body free – fall in 2 second if released from rest?
Choices
Choice (4)  Response  

a.  0.0 m  
b.  4.9 m  
c.  9.8 m  
d.  19.6 m 
Question number: 388
» Properties of Solids & Liquids » Surface Energy and Surface Tension
Question
A solid sphere of diameter D and density has a spherical cavity of diameter inside it. If it just floats completely immersed in a liquid of density , then the ratio is –
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 389
» Oscillations and Waves » Longitudinal and Transverse Waves
Question
Find the magnitude of pressure amplitude in a sound of intensity . Density of air at STP .
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 390
» Kinematics » Scalars and Vectors » Scalar and Vector Products
Question
The vector and are perpendicular to each other. The positive value of is:
Choices
Choice (4)  Response  

a.  3  
b.  5  
c.  10  
d.  6 