MCQOPTIONS
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MCQOPTIONS
This section includes 778 Mcqs, each offering curated multiple-choice questions to sharpen your Physics Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 451. |
One torr is equal to_________________? |
| A. | 1.333 Nm-2 |
| B. | .1333 Nm-2 |
| C. | 13.33 Nm-2 |
| D. | 133.3 Nm2 |
| Answer» E. | |
| 452. |
When a body is moving along a circular path it covers a certain angle in a given interval of time. Such type of motion is__________________? |
| A. | Vibratory motion |
| B. | Linear motion |
| C. | Rotatory motion |
| D. | Angular motion |
| Answer» E. | |
| 453. |
SI unit of the coefficient of viscosity is___________________? |
| A. | Kg.m.S-1 |
| B. | Kg m-1.S-1 |
| C. | Kg.m.S |
| D. | Kg-1.m-1.S-1 |
| Answer» C. Kg.m.S | |
| 454. |
A digit zero in a measurement__________________? |
| A. | May be significant may not significant |
| B. | Always significant |
| C. | Always insignificant sign |
| D. | Significant only if left to a significant figure |
| Answer» B. Always significant | |
| 455. |
The length of the second pendulum is_________________? |
| A. | 100 cm |
| B. | 99 cm |
| C. | 99.2 cm |
| D. | 98 cm |
| Answer» D. 98 cm | |
| 456. |
The SI unit of force constant is identical with that of__________________? |
| A. | Force |
| B. | Pressure |
| C. | Surface tension |
| D. | Loudness |
| Answer» D. Loudness | |
| 457. |
Number of significant figures in 0.0173 is_________________? |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 2 |
| Answer» B. 4 | |
| 458. |
Smaller the least count of the instrument more is the measurement________________? |
| A. | Accurate |
| B. | Precise |
| C. | Accurate and precise |
| D. | None of these |
| Answer» C. Accurate and precise | |
| 459. |
The dimension of force is__________________? |
| A. | MLT-1 |
| B. | MLT-2 |
| C. | ML-1T |
| D. | ML-1T-2 |
| Answer» C. ML-1T | |
| 460. |
The natural frequency of simple pendulum depends upon_______________? |
| A. | It’s mass |
| B. | It’s length |
| C. | Square of its length |
| D. | The square root of its length |
| Answer» E. | |
| 461. |
Dimensional analysis is helpful for__________________? |
| A. | Deriving a possible formula |
| B. | Checking the homogeneity of a physical equation |
| C. | Verification of laws |
| D. | Only A and B are correct |
| Answer» E. | |
| 462. |
ML-1 T-2 is the dimension of_______________? |
| A. | Force |
| B. | Pressure |
| C. | Momentum |
| D. | Energy |
| Answer» C. Momentum | |
| 463. |
Which equation is not dimensionally correct ? |
| A. | E=mc2 |
| B. | Vf=Vi+at |
| C. | S=Vt2 |
| D. | S=1/2at2 |
| Answer» D. S=1/2at2 | |
| 464. |
Three students measured the length of a needle with meter rod and recorded as : (i) 0.2145m (ii) 0.21m (iii) 0.214m Which one is a correct record ? |
| A. | Only (i) |
| B. | Only (ii) |
| C. | Only (iii) |
| D. | Both (i) and (ii) |
| Answer» D. Both (i) and (ii) | |
| 465. |
The energy of SHM is maximum at_______________? |
| A. | Mean position |
| B. | Extreme position |
| C. | In between mean and extreme |
| D. | All positions during SHM |
| Answer» E. | |
| 466. |
Absolute uncertainty in a measurement depends upon______________? |
| A. | The magnitude of the measurement |
| B. | Least count of the instrument |
| C. | Percentage error in the measurement |
| D. | All of a, b and C |
| Answer» C. Percentage error in the measurement | |
| 467. |
The product of the frequency and time period is equal to_________________? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 468. |
When the amplitude of a wave becomes double its energy become_________________? |
| A. | Double |
| B. | Four times |
| C. | One half |
| D. | None time |
| Answer» C. One half | |
| 469. |
For what displacement the P.E becomes 1/4 of its maximum value ? |
| A. | x = x’ |
| B. | x = x’/2 |
| C. | x = x’/4 |
| D. | x = x(2)’/2 |
| Answer» C. x = x’/4 | |
| 470. |
A simple pendulum suspended from the ceiling of a lift has time period T when the lift is at rest. When the lift falls freely, the time period is_________________? |
| A. | Infinite |
| B. | T/g |
| C. | Zero |
| D. | g/T |
| Answer» B. T/g | |
| 471. |
Which one is the highest power multiple ? |
| A. | Giga |
| B. | Beta |
| C. | Mega |
| D. | Deca |
| Answer» B. Beta | |
| 472. |
The unit of force is _________ and its symbol is ______________ Which is the correct pair ? |
| A. | Newton, n |
| B. | Newton, N |
| C. | newton, n |
| D. | newton, N |
| Answer» E. | |
| 473. |
An ideal standard of measurement of a base quantity has characteristics_______________? |
| A. | Accessible |
| B. | Invariable |
| C. | Transportable |
| D. | Only a and b are correct |
| Answer» E. | |
| 474. |
The displacement of SHM is written as X = X`sinθt if the displacement is written by X = Xθ sont then phase constant will be equal to_______________? |
| A. | 0° |
| B. | 45° |
| C. | 90° |
| D. | 180° |
| Answer» D. 180° | |
| 475. |
Which one is the derived quantity in SI units _____________? |
| A. | Electric current |
| B. | Electric charge |
| C. | Plane angle |
| D. | Amount of substance |
| Answer» C. Plane angle | |
| 476. |
Unit of G is ______________? |
| A. | Nm2Kg2 |
| B. | Nm2Kg |
| C. | Nm2Kg-2 |
| D. | None |
| Answer» C. Nm2Kg-2 | |
| 477. |
Total uncertainty, in the result obtained from the subtraction of two measurements, is equal to_______________? |
| A. | Sum of their absolute uncertainties |
| B. | The difference of their absolute uncertainties |
| C. | The product of their absolute uncertainties |
| D. | Division of their absolute uncertainties |
| Answer» B. The difference of their absolute uncertainties | |
| 478. |
One pico stands for_________________? |
| A. | 10 raised to power -15 |
| B. | 10 raised to power -12 |
| C. | 10 raised to power -9 |
| D. | 10 raised to power -6 |
| Answer» C. 10 raised to power -9 | |
| 479. |
Which of the following is not a correct representation method for prefixes______________? |
| A. | 1mm |
| B. | 10km |
| C. | 1000um |
| D. | Both A and B |
| Answer» D. Both A and B | |
| 480. |
Forced vibration is known as_____________________? |
| A. | Simple harmonic vibration |
| B. | Natural vibration |
| C. | Driven harmonic vibration |
| D. | Free vibration |
| Answer» D. Free vibration | |
| 481. |
Radiations are used for the treatment of skin of a patient is_______________? |
| A. | Alpha rays |
| B. | Gamma rays |
| C. | Beta rays |
| D. | X-rays |
| Answer» C. Beta rays | |
| 482. |
How many main frontiers of fundamental science ? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 483. |
One light year is equal to________________? |
| A. | 9.5x1015m |
| B. | 9.5x1015sec |
| C. | 9.5x1015Km |
| D. | 9.5x1015cm |
| Answer» B. 9.5x1015sec | |
| 484. |
The acceleration of a projection on the diameter for a particle moving along a circle is_______________? |
| A. | w2x |
| B. | wx2 |
| C. | w2x |
| D. | wx2 |
| Answer» D. wx2 | |
| 485. |
S.I unit of frequency is_________________? |
| A. | Vibration S-2 |
| B. | Radian |
| C. | Hertz |
| D. | ms-1 |
| Answer» D. ms-1 | |
| 486. |
The carburettor of a car is an application of_______________? |
| A. | Venturi meter |
| B. | Bernoulli equation |
| C. | Both A and B |
| D. | None |
| Answer» D. None | |
| 487. |
The length of the second pendulum is________________? |
| A. | 100 cm |
| B. | 99 cm |
| C. | 99.2 cm |
| D. | 98 cm |
| Answer» D. 98 cm | |
| 488. |
The total energy of a body executing S.H.M is directly proportional to________________? |
| A. | The square root of amplitude |
| B. | The amplitude |
| C. | Reciprocal of amplitude |
| D. | Square of an amplitude |
| Answer» E. | |
| 489. |
The number 76.85 is rounded off up to two significant figures as_____________? |
| A. | 76.8 |
| B. | 77 |
| C. | 76.9 |
| D. | None of these |
| Answer» C. 76.9 | |
| 490. |
Zero error of the instrument is a type of_________________? |
| A. | Random error |
| B. | Personal error |
| C. | Systematic error |
| D. | Classified error |
| Answer» D. Classified error | |
| 491. |
The profile of aeroplane wing which lifts it up is called as_____________? |
| A. | Wing shape |
| B. | Aerofoil profile |
| C. | Curved profile |
| D. | None of these |
| Answer» C. Curved profile | |
| 492. |
Which one is the dimensionally correct equation ? |
| A. | f=vt |
| B. | S=Vit+1/2at2 |
| C. | V=St |
| D. | V=f/t |
| Answer» C. V=St | |
| 493. |
In multiplication and division of measurement______________? |
| A. | Percentage uncertainties are added |
| B. | Absolute uncertainties are added |
| C. | Percentage uncertainties are divided |
| D. | Absolute uncertainties are divided |
| Answer» B. Absolute uncertainties are added | |
| 494. |
The number of significant figures in the length of a bar 6200mm measured by meter rod is_______________? |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | None of these |
| Answer» B. 3 | |
| 495. |
The number of significant figures in 5.400 is________________? |
| A. | 3 |
| B. | 5 |
| C. | 2 |
| D. | None |
| Answer» E. | |
| 496. |
To reduce the uncertainty in the timing experiment______________? |
| A. | Highly precise instrument |
| B. | Conduct at room temperature |
| C. | Count number of vibration |
| D. | Both a and C |
| Answer» E. | |
| 497. |
The span of the broad jump depends upon_______________? |
| A. | Mass of the jumper |
| B. | Height of jump |
| C. | Angle of projection |
| D. | None |
| Answer» D. None | |
| 498. |
When a body moves in a circle of radius r with linear speed V its centripetal force is_______________? |
| A. | mV/r2 |
| B. | mV/r |
| C. | mV2/r |
| D. | mV2/r2 |
| Answer» D. mV2/r2 | |
| 499. |
The blood flow is _______________ flow at systolic pressure? |
| A. | Laminar |
| B. | Turbulent |
| C. | Mixed |
| D. | None |
| Answer» B. Turbulent | |
| 500. |
According to Einstein, the gravitational interaction is possible between_______________? |
| A. | material objects only |
| B. | material objects and electromagnetic radiation only |
| C. | electromagnetic radiations |
| D. | none of the above |
| Answer» C. electromagnetic radiations | |