1111. The unit of Planck’s constant h i same as that of :
A. Energy
B. Work
C. Linear Momentum
D. Angular Momentum *
1112. Which of the following quantity is deimensionless?
A. Gravitational constant
B. Plank’s Constant
C. Power of lens and gas constant
D. Steradian *
1113. The dimensions of the quantities is one of the following pairs are the same .Identify the pairs:
A. Torque and work *
B. Angular Momentum and work
C. Energy and Young’s modulus
D. Light year and time
1114. Which of the following is the smallest unit ?
A. Millimeters
B. Angstrom
C. Fermi *
D. Metre
1115. If unit of lenght ,mass and time each be doubled , the unit of work done is increased by :
A. 4 Times
B. 6 Times
C. 8 Times
D. 2 Times *
1116. The rate mistakes in the estimation of mass and speed are 3% and 4% separately . The following is the maximum measurement error for kinetic energy:
A. 11% *
B. 10%
C. 8%
D. 9%
1117. If current flowing in a conductor changes by 1% then power will change by:
A. 10%
B. 1%
C. 100%
D. 2% *
1118. Total mass when silver coins are added to box as 2.2 kg, 0.01001 kg and0.01002 kg Correct to appropriated precision:
A. 2.3 Kg
B. 2.2 Kg *
C. 2.43 Kg
D. 2.67 Kg
1119. The fundamental unit which has same power in the dimensional formula of surface tension and viscosity is :
A. Mass *
B. Length
C. Time
D. None
1120. The percentage errors in the measurements of mass and speed are 2% and 3% respectively. How much will be the maximum error in the estimate of the kinetic energy obtained by measuring mass and speed :
A. 11%
B. 8% *
C. 5%
D. 1%