90° is equal to how many radians?
1.57 radians
1.75 radians
3.14 radians
2.57 radians
Which of the following is NOT correct?
W.K. Roentgen : X-rays
Albert Einstein : Theory of Relativity
M.N Saha : Thermal Isolation
Enrico Fermi : Measurement of electron charge
The dimension of Light year is
LT ^{-1}
L
LT ^{-2}
T^{ -1}
Dimensional formula of Torque is
M^{1}L^{2}T^{2}
ML^{-1}T^{1}
M^{2}LT^{1}
M^{2}L^{2}T^{2}
Which of the following is a dimensional constant?
Refractive Index
Poisson's ratio
Relative density
Gravitational Constant
Who gave the Universal Law of Gravitation?
Kepler
Newton
Copernicus
Aryabhatta
Curie is the unit of
Half-life period
Decay constant
Radioactivity
Nuclear force
Who formulated the laws of planetary motion?
Issac Newton
Johannes Kepler
Henry Cavendish
Albert Einstein
One Fermi is equal to
10^{-7}m
10^{-8 }m
10^{-15 }m
10^{-10 }m
The most accurate time measurement device is
Quartz clock
Electrical Oscillations
Caesium atomic clock
Seconds pendulum