If we select the unit of acceleration as 980 cm/s2 and unit of velocity as 3 x1010cm/s the unit of time will be
4.6 x 107s
3.6 x 106s
3.06 x 107s
4.66 x 107s
The unit of length convenient on the atomic scale is known as an angstrom and is denoted by Å. 1Å = 10-10 m.The size of the hydrogen atom is about 0.5 Å.What is the total atomic volume in m3 of a mole of hydrogen atoms?
3 x 10-6 m3
3 x 10-7 m3
3 x 10 -17m3
3 x 10-10 m3
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
1/10 N
1/(N - 1)
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
The velocity v of a particle at time t is given by v = at + b / t + c,where a,b and c are constants.The dimensions of a,b and c are respectively
[LT-2], [L] and [T]
[L2] ,[T] and [LT2]
[LT2] ,[LT] and [L]
[L] ,[LT] and [T]
Who formulated the laws of planetary motion?
Issac Newton
Johannes Kepler
Tycho Brahe
Albert Einstein
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
How many amu would make up 1 kg?
6. 024 x 1026 amu
1.6 x 1017 amu
9.11 x 1027 amu
8.852 x 10 12amu
Which one of the followig is odd one?
Shake
Century
Lunar month
Nautical mile
A LASER beam at moon returns after 2.56 s from moon.What is the radius of the orbit of moon (lunar orbit) around the earth?
3.84 x 108 m
3 x 108 m
3.84 x 104 m
3.84 x 1010 m
