10 - 9 s o f C s - c l o c k o f 9192631770 o s c i l l a t i o n s

10 - 9 s o f K r - c l o c k o f 1650763.73 o s c i l l a t i o n s

10 - 9 s o f K r - c l o c k o f 6521389.63 o s c i l l a t i o n s

10 - 9 s o f C s - c l o c k o f 1650763.73 o s c i l l a t i o n s

EASY

Earn 100

The CGS system of units indicates centimetre, gram and second.

50% studentsanswered this correctly

Important Questions on Measurements and Motion

EASY

Science>Physics>Measurements and Motion>System of Unit

If $E$ and $H$ represents the intensity of electric field and magnetizing field respectively, then the unit of $\frac{E}{H}$ will be:

EASY

Science>Physics>Measurements and Motion>System of Unit

Light year is a unit of

EASY

Science>Physics>Measurements and Motion>System of Unit

The angular speed of a fly-wheel making

180 rpm

is ________

EASY

Science>Physics>Measurements and Motion>System of Unit

The prefix atto means

EASY

Science>Physics>Measurements and Motion>System of Unit

“Parsec” is the unit of :

EASY

Science>Physics>Measurements and Motion>System of Unit

Which one of the following is not a fundamental SI unit?

EASY

Science>Physics>Measurements and Motion>System of Unit

Out of the following four dimensional quantities, which one qualifies to be called a universal constant?

EASY

Science>Physics>Measurements and Motion>System of Unit

A bucket can be filled with

3.52 kl

water. Define the capacity of the bucket in

ml

EASY

Science>Physics>Measurements and Motion>System of Unit

The surface tension of mercury is 32 dyne

c m^{- 1}

. Its value in SI is

MEDIUM

Science>Physics>Measurements and Motion>System of Unit

It is estimated that per minute each cm² of earth receives about 2 calorie of heat energy from the sun. This constant is called solar constant S. Express solar constant in SI units.

EASY

Science>Physics>Measurements and Motion>System of Unit

One femtometre is equivalent to

EASY

Science>Physics>Measurements and Motion>System of Unit

The unit of Stefan's constant is

MEDIUM

Science>Physics>Measurements and Motion>System of Unit

A new unit of length is chosen such that the speed of light in vacuum is unity. What is the distance between the sun and the earth in terms of this new unit, if light takes