General Physics Questions And Answers, Set 39

 

General Physics Questions And Answers

Q1. 

From Kepler’s law of orbit, we can infer that the sun is located _____ of the planet’s orbit.

Answer :  

at one of the foci

Q2. 

The velocity of a planet is the greatest at perigee.

Answer :  

True

Q3. 

Which of the following quantities have the same S.I. unit as that of modulus of elasticity?

Answer :  

Energy per unit volume

Q4. 

Which of the following statements is correct for ductile materials.

Answer :  

Large deformation takes place between elastic limit and fracture point

Q5. 

Stress in a solid body is defined as ___________ per unit area.

Answer :  

internal forces developed due to externally applied forces

Q6. 

Select the correct order with regard to elasticity of materials.

Answer :  

Steel > Glass > Rubber

Q7.

If a glass tube is of insufficient length, water rises and overflows.

Answer :  

False

Q8. 

In a closed pipe of radius R, fluid (having some viscosity) is flowing laminarly. Which point along a cross section will have maximum speed?

Answer :  

Centre

Q9. 

Choose the correct option regarding a streamline.

Answer :  

In a given streamline, velocity of a point can vary with time

Q10. 

Which device is used to measure pressure?

Answer :  

Barometer

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