Physics Practice MCQ Page 19
Multiple Choice questions for Physics in the sets of 10 each on one page with questions and answers. All sets are useful in the preparation of subject tests for employment or admission.
Question: 507 Let a disc, a cylinder, a solid sphere, and a spherical shell be rolled down in an inclined plane simultaneously. Which will reach first?
- Disc
- Cylinder
- Solid sphere
- Spherical Shell
Question: 508 A point on the edge of a rotating disc of radius 8 m moves through an angle of 2 rad. The length of arc described by the point is
- 0.25 m
- 4 m
- 16 m
- 4 rad
Question: 509 In an equilibrium problem, the axis about which torques are computed
- must pass through the centre of gravity of the body
- must pass through one end of the body
- must intersect the line of action of at lest one force acting on the body
- may be located anywhere
Question: 510 Streamlined objects move more easily through fluids than those of irregular shape. The reason is that
- turbulence is decreased
- viscosity is increased
- turbulence is increased
- viscosity is decreased
Question: 511 A quantity not directly involved in the rotational motion body is
- mass
- torque
- moment of inertia
- angular velocity
Question: 512 If you float in water with just your nose out, the average density of your body must be:
- same as that of the water
- greater than that of water
- less than that of water
- none of the above
Question: 513 Powder clings to the face due to
- compression
- cohesion
- adhesion
- capillarity
Question: 514 When a tuning fork is made to vibrate, vibrations of its two prongs
- are in phase
- have phase difference of π
- have a phase difference π/2
- have phase difference π/4
Question: 515 A ci8rcle is obtained as a Lassajous figure when simple harmonic motions are having
- the same amplitude and a phase difference of π
- the same amplitude and a phase difference of π/2
- the same amplitude, frequency and a phase difference of π
- the same amplitude, frequency and a phase difference of π/2
Question: 516 If two tuning forks A and B are sounded together they produce 4 beats per seconds. A is then slightly loaded with wax, they produce 2 beats when sounded again. The frequency of A is 256. The frequency of B will be
- 250
- 252
- 260
- 262
Question: 517 To allow the body to oscillate with a measurably large amplitude under the influence of an external periodic force
- m should be small and F should be large
- m should be large and F should be small
- F/m should be small
- w should be very large compared to w0
Question: 518 An automobile sounding its horn is moving away from an observer. The pitch of the horn's sound relative to its normal pitch is
- higher
- lower
- the same
- higher or lower depending upon the exact frequency
Answers to the questions of Physics on this page
Following list gives the correct choice for the answer of the Physics mcqs.
507 . C
508 . C
509 . D
510 . A
511 . A
512 . B
513 . C
514 . A
515 . D
516 . B
517 . A
518 . B
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MCQ for Practicing Subject Tests