General Physics Questions And Answers, Set 38

 

General Physics Questions And Answers

Q1. 

The universal law of gravitation becomes more inapplicable as the size and distance between objects decreases.

Answer :  

True

Q2. 

The velocity of a planet is constant throughout its elliptical trajectory in an orbit.

Answer :  

False

Q3. 

If the eccentricities of the planetary orbits were taken as zero, then the sun is at the centre of the orbit.

Answer :  

True

Q4. 

The stress corresponding to fracture point is called ______

Answer :  

breaking stress

Q5. 

All materials follow hooke’s law in its initial stages. True or False?

Answer :  

False

Q6.

A partially elastic body can never be permanently deformed. True or False?

Answer :  

False

Q7. 

The contact angle determines whether liquid will rise or get depressed along a solid surface. Select the correct statement regarding the same.

Answer : 

If contact angle is found to be less than 90°, the liquid will have raise along the solid surface

Q8. 

What is the effect of temperature increase on viscosity of liquids and gases?

Answer :  

Increases for gases and decreases for liquids

Q9. 

Velocity has to be the same at the same horizontal level in case of steady laminar flow.

Answer :  

False

Q10. 

A nail is made pointed at its end to ensure that pressure is more for a given amount of force applied on it. True or False?

Answer :  

True

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