MCQOPTIONS
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MCQOPTIONS
This section includes 100 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If the size of an atom (≅1A) were enlarged to the tip of a sharp pin (≅10-5), how large would the height of Mount Everest be? |
| A. | were enlarged to the tip of a sharp pin (≅10-5), how large would the height of Mount Everest be?a) 107m |
| B. | 108m |
| C. | 1010m |
| D. | 109m |
| Answer» E. | |
| 2. |
A 35mm wide slide with a 24mm×36mm picture is projected on a screen placed 12cm from the slide. The image of the slide picture on the screen measures 1m×1.5m. What is the linear magnification of the projector-screen arrangement? |
| A. | 150.6 |
| B. | 1736 |
| C. | 1524 |
| D. | 41.67 |
| Answer» E. | |
| 3. |
In a submarine fitted with SONAR, the time interval between the generation of an ultrasonic wave and the receipt of its echo is 200s. What is the distance of the enemy submarine? The speed of the sound in water is 1.450km/s. |
| A. | 2.811 km |
| B. | 112.5 km |
| C. | 145 km |
| D. | 100 km |
| Answer» D. 100 km | |
| 4. |
The angular diameter of the sun is 1920’’. If the distance of the sun from the earth is 1.5×1011 m, what is the linear diameter of the sun? |
| A. | 4.85×10-6 m |
| B. | 1.4×109m |
| C. | 2.35×108 m |
| D. | 1.4×108m |
| Answer» C. 2.35×108 m | |
| 5. |
The moon is observed from two diametrically opposite points A and B on the earth. The angle θ subtended at the moon by the two directions of observation is 1°54’. Given the diameter of the earth to be 1.276×107 m, compute the distance of the moon from the earth. |
| A. | 3.84×108 m |
| B. | 1.276×107 m |
| C. | 3.84m |
| D. | 1.27m |
| Answer» B. 1.276×107 m | |
| 6. |
The shadow of a tower standing on a level plane is found to be 50m longer when the sun’s altitude is 30° that when it is 60°. Find the height if the tower. |
| A. | 1.732 m |
| B. | 43.3 m |
| C. | 25 m |
| D. | 25√3 m |
| Answer» C. 25 m | |
| 7. |
What is the method for determining the distance of a superior planet? |
| A. | Copernicus method |
| B. | Kepler’s third law of planetary motion |
| C. | Parallax method |
| D. | Triangulation method |
| Answer» C. Parallax method | |
| 8. |
Becquerel is a unit of? |
| A. | Radioactivity |
| B. | Length |
| C. | Frequency |
| D. | Area |
| Answer» B. Length | |
| 9. |
Angstrom (Å) = ______. |
| A. | 10-6 m |
| B. | 10-8 m |
| C. | 10-10 m |
| D. | 10-12 m |
| Answer» D. 10-12 m | |
| 10. |
In MKS system, we measure |
| A. | Mass in kilogram |
| B. | Distance in meter |
| C. | Time in second |
| D. | All of these |
| Answer» E. | |
| 11. |
A 100 meter long rope is cut into two parts so that one part is (2/5)th of total length. Length of the two parts separated are |
| A. | 20 m, 50 m |
| B. | 40 m, 60 m |
| C. | 30 m, 70 m |
| D. | 50 m, 50 m |
| Answer» C. 30 m, 70 m | |
| 12. |
0.3 litre is equal to |
| A. | 300 ml |
| B. | 3000 ml |
| C. | 25 ml |
| D. | None of these |
| Answer» B. 3000 ml | |
| 13. |
A shopkeeper brought 6 tons of wheat & sold 4.7 tons out of it. How many kgs of wheat has he with him now? |
| A. | 130 kg |
| B. | 13 kg |
| C. | 13000 kg |
| D. | 1300 kg |
| Answer» E. | |
| 14. |
In international standard system the unit of frequency is |
| A. | cm/sec |
| B. | number of cycles/min |
| C. | Hertz |
| D. | meter/sec2 |
| Answer» D. meter/sec2 | |
| 15. |
Enthalpy in the fundamental unit is expressed as: |
| A. | ML2T-1 |
| B. | ML2T-2 |
| C. | MLT-2 |
| D. | ML-2T-2 |
| Answer» C. MLT-2 | |
| 16. |
Farad is a unit of: |
| A. | Capacitance |
| B. | Resistance |
| C. | Inductance |
| D. | Reactance |
| Answer» B. Resistance | |
| 17. |
One micron = _____ cm |
| A. | 0.001 |
| B. | 0.0001 |
| C. | 0.01 |
| D. | 1.0E-5 |
| Answer» C. 0.01 | |
| 18. |
One volt is equivalent to |
| A. | 1 joule coulomb |
| B. | 1 joule coulomb-1 |
| C. | 1 coulomb second |
| D. | 1 coulomb second-1 |
| Answer» C. 1 coulomb second | |
| 19. |
In MKS system pressure is measured in |
| A. | Dynes cm2 |
| B. | Dyne/cm2 |
| C. | Newton/m2 |
| D. | gmwt/cm2 |
| Answer» D. gmwt/cm2 | |
| 20. |
Light year is a unit of measurement of |
| A. | Time |
| B. | Distance |
| C. | Brightness of a star |
| D. | Speed of light |
| Answer» C. Brightness of a star | |
| 21. |
Four Micron is |
| A. | 0.04 mm |
| B. | 0.004 mm |
| C. | 0.0004 mm |
| D. | 0.4 mm |
| Answer» C. 0.0004 mm | |
| 22. |
Light - year is the unit of |
| A. | energy |
| B. | intensity |
| C. | age |
| D. | distance |
| Answer» E. | |
| 23. |
One horse power in metric system is equal to- |
| A. | 75 kg-wt. metre /second |
| B. | 75 kg-wt.m/hour |
| C. | 4500 kg wt-m/second |
| D. | 4500 kg wt-m/hour |
| Answer» B. 75 kg-wt.m/hour | |
| 24. |
Newton is unit of force. It is the unit in |
| A. | MKS system |
| B. | CGS system |
| C. | FPS system |
| D. | none of these |
| Answer» B. CGS system | |
| 25. |
Match the columns.SI unitComponent1. Amount of substancea. ampere2. Electric currentb. candela3. Luminous intensityc. mole4. Plane angled. radian |
| A. | 1 - c, 2 - b, 3 - d, 4 - a |
| B. | 1 - c, 2 - b, 3 - a, 4 - d |
| C. | 1 - c, 2 - a, 3 - b, 4 - d |
| D. | 1 - b, 2 - c, 3 - a, 4 - d |
| Answer» D. 1 - b, 2 - c, 3 - a, 4 - d | |
| 26. |
Complete the following.1 kwh = ___________? |
| A. | 36 × 10-6 J |
| B. | 3.6 × 10-6 J |
| C. | 3.6 × 106 J |
| D. | 36 × 106 J |
| Answer» D. 36 × 106 J | |
| 27. |
One mile is approximately equivalent to _______ kilometres. |
| A. | 1.6 |
| B. | 1.4 |
| C. | 0.8 |
| D. | 1.2 |
| Answer» B. 1.4 | |
| 28. |
Barn is a unit of which physical quantity? |
| A. | Length |
| B. | Mass |
| C. | Area |
| D. | Frequency |
| Answer» D. Frequency | |
| 29. |
[M0LT-2] are the dimensions of _______. |
| A. | Gravitational potential energy |
| B. | Gravitational intensity |
| C. | Gravitational potential |
| D. | Gravitational constant |
| Answer» C. Gravitational potential | |
| 30. |
Candela is the SI unit of which of the following base quantities? |
| A. | Length |
| B. | Mass |
| C. | Luminous intensity |
| D. | Temperature |
| Answer» D. Temperature | |
| 31. |
One of physical quantities which is not a base quantity is |
| A. | length |
| B. | force |
| C. | mass |
| D. | time |
| Answer» C. mass | |
| 32. |
127 cm = |
| A. | 5 inches |
| B. | 50 inches |
| C. | 500 inches |
| D. | None of these |
| Answer» C. 500 inches | |
| 33. |
Dimension formula for elastic strain will be? |
| A. | M0L0T0 |
| B. | M1L-1T-2 |
| C. | M0L0T-1 |
| D. | None of the above |
| Answer» B. M1L-1T-2 | |
| 34. |
In SI unit of force Newton (N) is given by (where m stands for metre and s stand for second) |
| A. | 1 N = 1 kg/ms2 |
| B. | 1N = 1 kg m/s2 |
| C. | 1 N = 1 kg s2/m |
| D. | 1N = 1 kg m s2 |
| Answer» C. 1 N = 1 kg s2/m | |
| 35. |
Boltzmann’s constant and Planck’s constant differ in the dimensions of |
| A. | Time and temperature |
| B. | Mass and temperature |
| C. | Length and mass |
| D. | Length and time |
| Answer» B. Mass and temperature | |
| 36. |
_______ is a dimensionless quantity. |
| A. | Gravity |
| B. | Specific Gravity |
| C. | Density |
| D. | Acceleration |
| Answer» C. Density | |
| 37. |
1 micron (μ) is |
| A. | 10-9 m |
| B. | 10-12 m |
| C. | 10-6 m |
| D. | 10-15 m |
| Answer» D. 10-15 m | |
| 38. |
Carat is a unit of ______________. |
| A. | Length |
| B. | Volume |
| C. | Density |
| D. | Mass |
| Answer» E. | |
| 39. |
[M0L2T-2] are the dimensions of _______. |
| A. | Gravitational potential energy |
| B. | Gravitational potential |
| C. | Gravitational constant |
| D. | Gravitational intensity |
| Answer» C. Gravitational constant | |
| 40. |
According to system international length of substance is measured in |
| A. | cm |
| B. | m |
| C. | km |
| D. | mm |
| Answer» C. km | |
| 41. |
In all fuel types, primary energy content is generally expressed in terms of: |
| A. | Megawatt |
| B. | Joules |
| C. | Kilowatt |
| D. | Toe |
| Answer» E. | |
| 42. |
1 dyne (a unit of force in CGS system) equals to |
| A. | 103 g cm/s2 |
| B. | 10-3 g cm/s2 |
| C. | 105 kg m/s2 |
| D. | 10-5 kg m/s2 |
| Answer» E. | |
| 43. |
Choose the correct statement from these- |
| A. | The mass is always constant, while the weight changes |
| B. | The mass always changes, while the weight is constant |
| C. | Both mass and weight remain constant |
| D. | Both mass and weight change |
| Answer» B. The mass always changes, while the weight is constant | |
| 44. |
Candella is a unit of ____________. |
| A. | Density |
| B. | Volume |
| C. | Light Intensity |
| D. | Sound |
| Answer» D. Sound | |
| 45. |
1 Gallon is equal to |
| A. | 4.544 litres |
| B. | 4.00 litres |
| C. | 5.0 litres |
| D. | 5.544 litres |
| Answer» B. 4.00 litres | |
| 46. |
Consider the following statements about Light year:1. Light year is a unit for measurement of very large distances.2. Light year is a unit for measurement of very large time intervals.3. Light year is a unit for measurement of intensity of light.Which of the statements given above is/are correct? |
| A. | 1, 2 and 3 |
| B. | 2 and 3 only |
| C. | 1 and 2 only |
| D. | 1 only |
| Answer» E. | |
| 47. |
One nanometre is equal to |
| A. | 109 mm |
| B. | 10-6 cm |
| C. | 10-7 cm |
| D. | 10-9 cm |
| Answer» D. 10-9 cm | |
| 48. |
A student measure certain lengths using a meter scale having least count equal to 1 mm. Which of the following measurements are more precise? |
| A. | 0·50 mm |
| B. | 29·07 cm |
| C. | 0·925 m |
| D. | 910 mm |
| Answer» D. 910 mm | |
| 49. |
If, \( x=a+bt+ct^2 \)and x is in meters and t is in seconds, then the unit of a is: |
| A. | ms-1 |
| B. | ms-2 |
| C. | m |
| D. | m2s |
| Answer» D. m2s | |
| 50. |
Lux is unit of which physical quantity? |
| A. | Luminance |
| B. | Luminous intensity |
| C. | Illumination |
| D. | Luminous flux |
| Answer» D. Luminous flux | |