Related Questions
Which does not have the same unit as others
Watt-sec
Kilowatt-hour
eV
J-sec
The time period of a simple pendulum is given by , where is the length, is acceleration due to gravity, and is displacement. The dimensions of are:
[L⁻¹T]
[LT⁻¹]
[L⁻¹T⁻¹]
[L⁻²T²]
Which relation is wrong
λ = h/p
E = mc^2
E = 1/2mv
E = hv
A pressure of dyne is equivalent to
If the unit of length and force be increased four times, then the unit of energy is
Increased 4 times
Increased 8 times
Increased 16 times
Decreased 16 times
Which of the following system of units is not based on units of mass, length and time alone
SI
MKS
FPS
CGS
The SI unit of length is the metre. Suppose we adopt a new unit of length which equal x metre. The area of expressed in terms of the new unit has a magnitude
1/x
1/x²
x
x²
A highly advanced alien civilization uses a unit of mass called a 'glorp' and a unit of length called a 'blarp'. Their fundamental unit of time is the 'zorp'. They discover a fundamental law of physics relating force (F), mass (m), length (l), and time (t) expressed as , where K is a dimensionless constant. If the dimensions of force in their system are glorp\cdot blarp \cdot zorp^{-2}$, what are the values of a, b, and c?
a = 1, b = 1, c = -2
a = 1, b = 2, c = -2
a = 2, b = 1, c = -3
a = 1, b = 1, c = -1
Precision in measurement depends on
Zero error
Parallax
Calibration of instrument
Least count of instrument
Volt/metre is the unit of
Potential
Work
Force
Electric intensity