1082. If the measuring scale has a least count of 10 Kg then in 8,000 kg the significant figures are?

A. 4
B. 1
C. 3 *
D. 0

1083. The numbers of the significant figures in all the given number 25.12, 2009, 4,156 and 1.257×10 -4 are?

A. 1
B. 3
C. 3
D. 4 *

1084. Steradian is an angle of?

A. One dimension
B. Two dimensions
C. Three dimensions *
D. Zero dimension

1085. Which of the following quantity is dimensionless?

A. Gravitational constant
B. Plank’s constant
C. Power of lens and gas constant
D. Refractive index

1086. In which study is the motion examined without considering its cause?

A. Kinematics *
B. Mechanics
C. Statics
D. Modern physics

1087. The error of any measurement may occur due to?

A. Negligence of the observer
B. Faulty apparatus used to measure
C. Inappropriate method employed
D. All of these *

1089. The branch of science which deals with the study of matter and energy and the relationship between them is called?

A. Astronomy
C. Biology
D. physics *

1090. The precision of measurement in physics depends on?

A. Average values of the readings
B. Least counts of the instruments
C. Error free instruments
D. B and C *