NEET Physics Chapter Wise Mock Test – Physical World and Measurement

NEET Physics Chapter Wise Mock Test – Physical World and Measurement

Question 1:
Unit of reduction factor is
(a) ampere
(b) ohm
(c) tesla
(d) weber

Question 2:
The numerical value of a given quantity is
(a) independent of unit
(b) directly proportional to unit
(c) inversely proportional to unit
(d) directly proportional to the square root of the unit

Question 3:
Lumen is the unit of
(a) illuminating power
(b) luminous flux
(c) luminous intensity
(d) None of these

Question 4:
If h is Planck’s constant and X is wavelength, h/X has dimensions of
(a) momentum
(b) energy
(c) mass
(d) velocity

Question 5:
The physical quantity which does not have the same dimensions as the other three is
(a) spring constant ‘
(b) surface tension
(c) surface energy
(d) acceleration due to gravity

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Question 10:
Which of the following quantities has units but not dimensions?
(a) Displacement
(b) Angle
(c) Couple
(d) Speed

Question 11:

Question 12:
If L is the inductance, C capacitance and R resistance the ratios L/R and R-C have the same dimensions as those of
(a) frequency
(b) time
(c) energy
(d) length

Question 13:

Question 14:
Which of the following pairs of physical quantities does not have same dimensional formulae?
(a) Work and torque
(b) Angular momentum
(c) Tension and surface tension
(d) Impulse and linear momentum

Question 15:
Pascal-second has the dimensions of
(a) force
(b) energy
(c) pressure
(d) coefficient

Question 16:
Parsec is the unit of
(a) time
(b) distance
(c) frequency
(d) angular acceleration

Question 17:

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Question 19:
The quantity having the same units in all systems of units is
(a) mass
(b) time
(c) length
(d) temperature

Question 20:
Pressure gradient has the same dimensions as that of
(a) velocity gradient
(b) potential gradient
(c) energy gradient
(d) None of these

Question 21:

Question 22:
Which of the following physical quantities has neither dimensions nor unit?
(a) Angle
(b) Luminous intensity
(c) Coefficient of friction
(d) Current

Question 23:

Question 24:
Which of the following measurement is most precise?
(a) 5.00 mm
(b) 5.00 cm
(c) 5.00 m
(d) 5.00 km

Question 25:
The length and breadth of a rectangular sheet are 16.2 cm and 10.1 cm, respectively. The area of the sheet in appropriate significant figures and error is
(a) (164± 3) cm2
(b) (163.62 + 2.6) cm2
(c) (163.6±2.6) Cm2
(d) (163.62 + 3) cm2

Question 26:

Question 27:
The number of significant figures in 0.06900
(a) 5
(b)4
(c) 2
(d) 3

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Question 33:
An atmosphere,
(a) is a unit of pressure
(b) is a unit of force
(c) gives us an idea of composition of air
(d) is the height above which there is no air

Question 34:

Question 35:
Which one of the following is not a unit of Young’s modulus?
(a) Nm-1
(b) Nm-2
(c) Dyne Cm-1
(d) Mega pascal

Question 36:

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Question 38:
The dimensions of Planck’s constant is same as that of
(a) angular momentum
(b) linear momentum
(c) work
(d) coefficient of viscosity

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Question 42:
The ratio of the dimensions of Planck’s constant and that of the moment of inertia is the dimensions of
(a) frequency
(b) velocity
(c) angular momentum
(d) time

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