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| 1st year physics mcqs |
Measurements
1.06 Accuracy and accuracy
Which of the
following is the correct record of the diameter of the wire when measured with
a screw gauge of at least 0.001 cm counting?
(A) 2.3 cm
(B) 2.31 cm
(C) 2.312 cm
(D) 2.3124
cm
An accurate
measurement is:
(A) Better
health
(B) Low
health
(C) Medium
health related
(D) More Ùª Error
Final
Results Estimate 1.07 Uncertainty
For a total
assessment of the uncertainty of the final result obtained by multiplication
and division:
(A) Absolute
uncertainty is included
(B) Partial
uncertainty is added
(C) Age
uncertainty added
(D) Error
added
L.C = 0.01
cm is the absolute uncertainty for different callers:
(A) 0.1 mm
(B) 0.01 m
(C) 0.001 cm
(D) 0.001 mm
The
percentage uncertainty in mass and velocity measurements is 2% and 3%, the
maximum uncertainty in kinetic energy is:
(A) 11
(B) 8
(C) 6
(D) 1
The
percentage error in mass and velocity measurements is 2% and 3% respectively,
the maximum uncertainty (error) in kinetic energy is:
(A) 11
(B) 8
(C) 6
(D) 1
5.47 × 19.89
= 108.7983 in The answer should be written as follows:
(A) 108.8
(B) 108.9
(C) 109
(D) 108.79
We include
the final result obtained by multiplication for a total assessment of
uncertainty
(A) Absolute
uncertainty
(B) Partial
uncertainty
(C)
Uncertainty
(D) Error
The absolute
uncertainty in the measuring instrument is equal to:
(A) Minimum
count
(B) Partial
uncertainty
(C) Accuracy
(D) Percent
uncertainty
Uncertainty
can be caused by this.
(A) The
range of a tool
(B) Personal
negligence
(C) The
natural transformation of the object
(D) All of
the above
The four
readings of a micrometer for measuring the diameter of a wire in millimeters
are 1.21, 1.23, 1.25, 1.23. Deviation means:
(A) 0.02 mm
(B) 0.01 mm
(C) 0.10 mm
(D) 0.20 mm
The time
taken by the light from the moon to the earth:
(A) 1 minute
10 seconds
(B) 1 minute
20 seconds
(C) 1 minute
30 seconds
(D) 1 minute
40 seconds
Vernier
Caliper recorded a measurement of 0.01 cm with a minimum count of 0.45 cm, with
partial uncertainty:
(A) 0.01
(B) 0.02
(C) 0.03
(D) 0.45
1.08
Dimensions of the volume of physics
Which pair
has the same dimension?
(A) Work and
power
(B) Speed
​​and continuity
(C) Force
and torque
(D) Torque
and power
The power dimensions
are:
(A) [ML-2T-2]
(B) [MLT-1]
(C) [MLT-2]
(D) [ML2T-2]
The
dimensions of the light year are:
(A) Speed
(B) Force
(C) Time
(D) Length
The
qualifying aspects of viscosity are:
(A) [MLT-1]
(B) [ML-1T-1]
(C) [ML-1T-2]
(D) [M-1L-1T-1]
The ratio of
the amplitude of power to work is:
(A) 1: T
(B) T: 1
(C) 1: T-2
(D) T.2: 1
The angular
velocity dimensions are:
(A) [MLT-2]
(B) [MLT-1]
(C) [ML2T-1]
(D) [ML-2T-1]
The
dimensions of lg √ glg are as follows:
(A time
(B) Energy
(C) Speed
(D) Force
The
dimensions of the horizon are equal to the dimensions of F × lm −−− × F × lm:
(A) Force
(B) Moment
(C) Speed
(D) Speed
Fluid volume
flow rate amplitude are:
(A) [LT-1]
(B) [L2T-2]
(C) [L3T-1]
(D) [L3T-2]
Density
dimensions are:
(A) [ML-2]
(B) [M2L-2]
(C) [ML-3]
(D) None of
them
The
dimensions of the centrifugal force are:
(A) ML -
2T - 2ML - 2T - 2
(B) MLT -
1MLT- 1
(C) MLT -
2MLT - 2
(D) ML2T
- 2ML2T - 2
The weight
dimensions are:
(A) [LT-1]
(B) [LT-2]
(C) [MLT-2]
(D) [ML2T]
The
dimensions of speed are:
(A) [ML2T-1]
(B) [MLT-1]
(C) [ML2T-2]
(D) [ML2T]
Power
dimensions are:
(A) [ML2T-2]
(B) [ML2T2]
(C) [ML2T-3]
(D) [ML-1T-1]
Torque
dimensions are:
(A) [ML-1T]
(B) [ML2T-1]
(C) [ML2T-2]
(D) [ML2T2]
The
dimensions of the pressure are:
(A) [MLT-2]
(B) [ML-1T-2]
(C) [ML-1T-1]
(D) [ML2T-2]
The
frequency dimensions are:
(A) [LT]
(B) [T-1]
(C) [MLT]
(D) [LT-1]
The
dimensions of angular displacement are:
(A) [L2]
(B) [LT-1]
(C) [Lu]
(D) [L-1T-1]
The
dimensions of the viscosity are:
(A) [ML-1T]
(B) [ML2T-1]
(C) [ML-1T-1]
(D) [ML-1T-2]
The
dimensions of the gravitational constant G are:
(A) [M-1L3T-2]
(B) [ML2T-2]
(C) [M2L-1T-2]
(D) [ML-2T-1]
mc2
mc2 is equal to the dimensions of the relationship dimension:
(A) Power
(B) Speed
(C) Energy
(D) Tark
[MoLoT -
1] [MoLoT - 1] Quotes refer to:
(A) Speed
(B) Time
period
(C)
Frequency
(D) Force
Dimensions
[Mo LTo] represents quantity:
(A) Length
(B) Mass
(C) Time
(D) Speed
The
numerical value of constant in any formula cannot be determined by dimensional
analysis, however it can be found by:
(A) Increase
(B) Physical
quantity
(C)
Experiments
(D)
Uncertainty