AIEEE QUIZ-PHYSICS-UNIT & MEASUREMENT 1


Question 2A.1:Parsec is unit of -

distance
angular accleration
time
light


Question 2A.2:Difference in length of mean solar day and sideral day is about -

1 minute
4 minute
3 minute
56 minute


Question 2A.3:Which of the following is not unit of time-

shake
lunar month
Tropical year
light year


Question 2A.4:Electron volt is unit of

Pot. Diffrence
Energy
Power
Charge


Question 2A.5:The MKS unit of quantities are given against them, which of following pair is wrong.

Young's Modulus-N/m2
Magnetic Induction-tesla
Power of a lense - m-1
None of above


Question 2A.6:The SI unit of inductance is henry. henery can be written as-

Weber/ampere
Volt-second/ampere
ohm-second
all of above


Question 2A.7:One second is defined as- the time taken by Cs-133 atom to make ....................... vibrations.

1650763.73
9192631770
299,792,458
None of above


Question 2A.8:What is unit of Avagadro's Number

avagadro's number has no unit
mol-1
mol
None of above


Question 2A.9:Angular diameter of sun from earth is 16'. Find the diameter of the sun (Given distance of the earth from the sun = 1.49x 1011

2.384 x 109
2.384 x 108
6.938 x 108
6.938 x 109


Question 2A.10:Time taken by light to pass through a distance of 1.56 x 10 -16 m

Zero second
less than zero second
5.2 x 10 -24s
5.2 x 10 -25s


Question 2A.11:Erg x sec is unit of

Angular momentum
linear momentum
energy
power


Question 2A.12:A screw gauge, the main scale has division in millimeteres and the circular scale has 50 divisions. The least count of the screw gauge is

20 microns
2 microns
50 microns
5microns


Question 2A.13:Which of following is used to measure time-

Barometer
Chronometer
Radiometer
None


Question 2A.14:Which of the following systems of units is not based on units of mass, length and time alone?

SI
MKS
FPS
CGS


Question 2A.15:Choose the wrong pair:

Electric Charge - Coulomb
Temperature - Thermometer
Pressure - Barometer
Sp. gravity - Hygrometer


Question 2A.16:Which of the following is not the unit of energy

Calorie
Joule
Elevtron-volt
Watt


Question 2A.17:The unit of electric field is not equivlaent to

N/C
J/C
V/m
J/Cm


Question 2A.18:Which of the following pairs of physical quantities may be represented in the same unit?

Temperature and mole
Heat and Work
Heat and Temperature
Specific heat and Heat


Question 2A.19:The unit of power of a lense is

Watt
Horse Power
Diopter
Candela


Question 2A.20:Wb/m2 is equal to

Henry
Watt
Tesla
Dynes