The photograph of a house occupies an area of 1.75 cm2 on a 35 mm slide.The slide is projected on to a screen,and the area of the house on the screen is 1.55 m2.What is the linear magnification of the projector,screen arrangement?
94.1
9.41
0.941
0.0094
The error in the measurement of radius of a sphere is 2% what would be the error in the volume of the sphere.
4%
8%
3%
6%
If force F, velocity v and time T are chosen as the base units then the dimension of mass is terms of these are
FVT-2
FV-1T
FV-1 T-1
FVT
One meter = ______AU
6.67x10-12AU
1.58x 10-5ly
4.86x10-6AU
1.057 x 10-10ly
Which one of the following is not a dimensionless quantity
Strain
Solid angle
Planck's constant
Dielectric constant
The dimensional formula of angular momentum is
MLT-2
ML-1T-
M1L2T-1
MLT-1
The units of length, mass and time are called
S.I. Units
C G S Units
Fundamental Units
Derived Units
In the addition of following numbers with respect to significant figures find the correct answer 8.31 +10.6723 + 0.0043
18.9866
19
18.99
18.987
The most accurate time measurement device is:
Quartz clock
Electrical Oscillators
Caesium - atomic clock
Seconds Pendulum
Which of the following possess a unit but has no dimensions?
Angular Frequency
Angle
Stress