Physics questions and answers

Physics Questions and Answers

If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.

1,231.

For a rough inclined plane on which lies a body of weight W, the angle θ in the diagram above becomes the angle of friction if

A.

tan θ = coefficient of static friction

B.

cos θ = coefficient of dynamic friction

C.

sin θ = coefficient of sliding friction

D.

sec θ = limiting frictional force

Correct answer is A

No explanation has been provided for this answer.

1,233.

The fig above shows a block of mass m sliding down a rough inclined plane QP at angle \( \theta \) . The forces acting on the block along QP are

A.

mg sinθ and the normal reaction

B.

mg sinθ and the force of friction

C.

mg sinθ and the normal reaction

D.

mg cosθ and the normal reaction

Correct answer is B

No explanation has been provided for this answer.

1,234.

For what value of 6 are the forces in the diagram above in equilibruim

A.

\( 15^{\circ} \)

B.

\( 30^{\circ} \)

C.

\( 45^{\circ} \)

D.

\( 60^{\circ} \)

Correct answer is D

No explanation has been provided for this answer.

1,235.

The resultant capacitance in the fig above is

A.

15.0µF

B.

9.8µF

C.

1.3µF

D.

0.8µF

Correct answer is D

No explanation has been provided for this answer.