Unit and dimensions, Cee Mbbs Entrance, MCQ ,Nepal

Unit and dimensions, Cee Mbbs Entrance, MCQ ,Nepal

Posted by Nepal Quiz

الأربعاء، 30 أكتوبر 2024

_Physics

 

1. Dimensional formula of magnetic flux is

A) ML^2T^-2A^-1
B) ML^3T^-3A^-1
C) ML^2T^-2K^-1
D) M^2L^3T^-3A^-2

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2. A particle is moving with a velocity of 180 m/hr. What is the distance traveled in 10 seconds?

A) 0.5 cm
B) 5 m
C) 50 m
D) 250 m

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3. Escape velocity of a body on Earth’s surface is

A) 11.2 km/s
B) 20 km/s
C) 80 km/s
D) 240 km/s

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4. Root mean square velocity is proportional to

A) Gas constant
B) Avogadro’s number
C) Square of temperature
D) Square root of temperature

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5. Lift of an airplane is based on

A) Pascal’s law
B) Stokes law
C) Bernoulli’s principle
D) Archimedes principle

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6. The height up to which water will rise in a capillary tube will be

A) Maximum when water is at 0°C
B) Maximum when water is at 4°C
C) Minimum when water is at 0°C
D) Minimum when water is at 4°C

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7. Which color of light deviates the most when passed through a prism?

A) Red
B) Violet
C) Blue
D) Green

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8. All of the following waves can be polarized except:

A) Light wave
B) X-ray
C) Sound wave
D) Radio wave

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9. The unit of illuminance is

A) Lumen
B) Lux
C) Candela
D) Flux

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10. Bats can fly at night due to

A) Infrasonic
B) Ultrasonic waves
C) Radio waves
D) Electromagnetic waves

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11. If the voltage is 6 V and current is 0.5 A, then the power is

A) 12 W
B) 5 W
C) 8 W
D) 3 W

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12. A body of height 1 m stands in front of a convex mirror. Its distance from the mirror is equal to the mirror’s focal length. What is the height of the image?

A) 0.25 m
B) 0.33 m
C) 0.5 m
D) 1.22 m

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13. The dimensional formula of angular momentum is

A) ML^2T^-1
B) ML^2T^-2
C) ML^-1T^-1
D) M^2L^2T^-2

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14. Which of the following quantities has the same dimensions as force?

A) Momentum/time
B) Power/velocity
C) Energy/distance
D) All of these

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15. The unit of energy in the CGS system is

A) Joule
B) Dyne
C) Erg
D) Newton

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16. The dimensional formula of pressure is

A) ML^-1T^-2
B) ML^-2T^-2
C) MLT^-2
D) M^0L^2T^-2

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17. Which physical quantity has the dimensional formula M^0L^0T^0?

A) Relative density
B) Velocity
C) Displacement
D) Work

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18. In F = ma, where m is mass and a is acceleration, the dimensions of force are

A) MLT^-1
B) MLT^-2
C) ML^2T^-1
D) M^0L^0T^0

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19. What is the dimensional formula for work done?

A) ML^2T^-2
B) MLT^-2
C) MLT^-1
D) M^0L^0T^0

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20. The dimensional formula of electric charge is

A) M^0L^0T^1A^1
B) M^0L^0T^-1A^1
C) M^1L^1T^1
D) M^0L^1T^1A^-1

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21. In the equation F = kx, where k is a spring constant and x is displacement, what are the dimensions of k?

A) ML^2T^-2
B) ML^-1T^-2
C) MLT^-1
D) M^1L^0T^2

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22. Which of the following has no dimensions?

A) Dielectric constant
B) Electric field
C) Magnetic flux
D) Capacitance

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23. Which of the following represents the unit of magnetic flux?

A) Henry
B) Tesla
C) Weber
D) Ohm

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24. The Planck constant has the dimensional formula

A) M^1L^2T^-1
B) M^0L^1T^1
C) M^1L^1T^1
D) M^0L^0T^0

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25. What are the dimensions of entropy?

A) MLT^-2K^-1
B) ML^2T^-2K^-1
C) M^0L^0T^0K^0
D) MLT^2K^-2

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26. The gravitational constant G has dimensions

A) M^-1L^3T^-2
B) M^0L^0T^2
C) M^1L^1T^-1
D) M^2L^3T^-1

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27. If force is expressed as F = ma, then acceleration a has dimensions

A) LT^-2
B) LT^-1
C) L^2T^-2
D) MLT^-2

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28. Which of the following represents the dimensions of pressure?

A) M^0L^0T^0
B) ML^-1T^-2
C) ML^-2T^-1
D) ML^-1T^2

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29. Which of the following is a dimensional constant?

A) π
B) Planck constant
C) Dielectric constant
D) Relative density

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30. Which of the following is required for crystallization and storage of the hormone insulin?

A) Mn++
B) Mg++
C) Ca++
D) Zn++

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31. The unit of luminous intensity is

A) Lumen
B) Lux
C) Candela
D) Erg

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32. The velocity of a wave in a medium is given by (v = sqrt{rac{E}{ ho}}). What are the dimensions of E?

A) MLT^-2
B) ML^-1T^-2
C) ML^2T^-2
D) MLT^-1

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33. A dimensionless physical quantity is

A) Angular displacement
B) Kinetic energy
C) Velocity
D) Pressure

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34. The unit of capacitance in the SI system is

A) Farad
B) Coulomb
C) Henry
D) Joule

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35. In a unit conversion, if 1 hour is 3600 seconds, then 1 day is equal to

A) 86400 seconds
B) 43200 seconds
C) 72000 seconds
D) 100000 seconds

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