🧪 CBES Board Class 11 MCQ Quiz Hub

1. Physical quantities are
quantities such as degrees, radians and steradians
quantities such as length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity
quantities such as pounds, dollars and rupees
quantities such as kilos, pounds and gallons

2. The atmospheric pressure is 106 dyne/cm². What is its value in SI unit?
105 newton/m²
106 newton/m²
104 newton/m²
103 newton/m²

3. In a system of units if force (F), acceleration (A) and time (T) are taken as fundamentals units then the dimensional formula of energy is
FA2T
FAT2
FA2T
FAT

4. Which of the following groups have different dimensions?
Potential difference, EMF, voltage
Pressure, stress, Youngs modulus
Heat, energy, work done
Dipole moment, electric flux, electric field

5. ML-1T -2 is the dimensional formula of
magnetic induction
self-inductance
electric potential
electric field

6. What is the dimensional formula of magnetic field?
MT-2A-1
MT-1A-2
M-1L-2TA-1
M-1LTA-2

7. In SI system the fundamental units are
meter, kilogram, second, ampere, Kelvin, mole and candela
meter, kilogram, second, coulomb, Kelvin, mole and candela
meter, Newton, second, ampere, Kelvin, mole and candela
meter, kilogram, second, ampere, Kelvin, mole and lux

8. Which one of the following represents the correct dimensions of the coefficient of viscosity?
[ML-1T-2]
[MLT-1]
[ML-1T-1]
[ML-2T-2]

9. A particle starting from the origin (0, 0) moves in a straight line in the (x, y) plane. Its coordinates at a later time are the path of the particle makes with the x-axis an angle of
300
450
600
0

10. Resolution is
a measure of the bias in the instrument
None of these
the smallest amount of input signal change that the instrument can detect reliably
a measure of the systematic errors

11. Absolute error of the measurement is
the difference between the individual measurement and the true value of the quantity cubed. (b). (c) (d)
the difference between the individual measurement and the true value of the quantity squared
the difference between two individual measurements and their mean
the difference between the individual measurement and the true value of the quantity

12. Which of the following units denotes the dimensions [ML2/Q2], where Q represents the electric charge?
Wb/m²
Henry(H)
H/m²
Weber (Wb)

13. Light year is a unit of
time
distance
sunlight intensity
mass