General Physics Questions And Answers, Set 37

General Physics Questions And Answers

Q1. 

Gravitational force is _____

Answer :  

a long-range force

Q2. 

What does Kepler’s law of period relate?

Answer : 

Time period and semi-major axis

Q3. 

The elliptical orbits of planets were indicated by calculations of the orbit of which astronomical body?

Answer :  

Mars

Q4. 

Which of the following stresses causes change in density, as long as force acts on the body?

Answer :  

Volumetric stress

Q5. 

Hooke’s law is an empirical law. True or False?

Answer : 

True

Q6. 

A completely elastic solid body partially regains its shape after removal of external force. True or False?

Answer :  

False

Q7. 

The unit of surface tension is same as that of _________

Answer :  

surface energy per unit area

Q8. 

The coefficient of viscosity is equal to the ratio of shear stress to shear strain. True or False?

Answer : 

False

Q9. 

The speed of efflux, in case of a tank with a hole at the bottom, depends upon which of the following factors? Assume that the area of the tank is > > area of hole.

Answer : 

height of hole from liquid

Q10. 

Streamlines of steady flows can be curved.

Answer : 

True

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