EASY
JEE Advanced
IMPORTANT
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Radian is the unit of plane angle and it is a supplementary unit.

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Important Questions on Dimensions and Measurement

EASY
JEE Advanced
IMPORTANT
(a) The unit of work and energy are ...............
(b) The unit of power is ...............
(c) The unit of energy per unit volume is ..........
EASY
JEE Advanced
IMPORTANT
Fill in the blanks
(a) The volume of a cube of side 1 cm is equal to _____ m3.
(b) The surface area of a solid cylinder of radius 2 cm and height 10 cm is equal to _____mm2
(c) A vehicle moving with a speed of 18 km h-1covers _____  m in 1 s
(d) The relative density of lead is 11.3. Its density is  _____ kg m-3
.
EASY
JEE Advanced
IMPORTANT
Fill in the blanks by suitable conversion of units 1 kg m2 s-2=10n g cm2 s-2 . Then the value of n is _____: 
MEDIUM
JEE Advanced
IMPORTANT
Convert gravitational constant G from CGS to MKS system.
MEDIUM
JEE Advanced
IMPORTANT
In the CGS system, the magnitude of the force is 100 dynes. In another system where the fundamental physical quantities are kilogram, meter, and minute, find the magnitude of the force.
MEDIUM
JEE Advanced
IMPORTANT
To determine Young's modulus of a wire, the formula is Y=FA·LΔl, where L=length, A=area of cross-section of the wire, and Δl=change in the length of the wire when stretched with a force F. Find the conversion factor to change it from CGS to the MKS system.