General Physics Questions And Answers, Set 9

 

General Physics Questions And Answers

Q1. 

What is the unit for measuring intensity of light?

Answer :  

Candela

Q2. 

Which is not a system of units?

Answer :  

Decibel

Q3. 

A body is moving with respect to a stationary frame, its motion can be called _____

Answer :  

Absolute

Q4. 

A car is moving with 20m/s velocity, another car is moving with a velocity of 50 m/s. What is the relative velocity of first car with respect to the second?

Answer :  

-30 m/s

Q5. 

What does relative motion signify?

Answer :  

Uniformly accelerated

Q6. 

A ball is thrown up with an initial velocity of 20 m/s and after some time it returns. What is the maximum height reached? Take g = 10 m/s2.

Answer : 

20m

Q7. 

The equations of motion are valid for which types of motion?

Answer : 

Uniformly accelerated

Q8. 

The gradient of velocity v/s time graph is equal to____

Answer : 

Velocity

Q9. 

A car is moving in a spiral starting from the origin with uniform angular velocity. What can be said about the instantaneous velocity?

Answer : 

It increases with time

Q10. 

Which of the following statements is correct?

Answer : 

Average speed <= Instantaneous speed

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