Dimension of relative density is :
[M3L2]
[M-2L-3]
Dimensionless
[M2L-5]
In a vernier callipers N divisions of vernier scale coincide with N - 1 divisions of main scale (in which length of one division is 1 mm).The least count of the instrument should be
N
N - 1
1/10N
1/(N - 1)
One light year is equal to
9.467 x 1015 m
9.467 x 1014m
9.467 x 10 16m
9.467 x 1010m
The radian is the unit of
Angle
Solid angle
Luminous intensity
Temperature
Distance of a star from earth is 1.5 x 1011 m.If the angular size of the star is 2000″.Find the diameter of the star.
1.455 x 109 m
14.55 x 109 m
1.155 x 105 m
1.455 x 107 m
The number of significant figures in 36400
5
6
3
4
The maximum and minimum temperatures at a place are(40.6 ± 0.3)°C and (32.4 ± 0.2)°C.Calculate the difference in the temperatures with error limits.
(8.2 ± 0.5)°C
(8.0 ± 5.0)°C
(8.2 ± 5.0)°C
(8.0 ± 0.5)°C
Which one of the followig is odd one ?
Shake
Century
Lunar month
Nautical mile
According to Kepler's law the square of the time period of a planet is proportional to the
Cube of the semi minor axis
Square of the semi major axis
Square of the mean radius
Cube of the semi major axis
The dimensional formula of resistance
[ML2T-3 A-1]
[ML2T-2A-1]
[ML2T-3A-2]
[M2L2T-3A-2]
