EASY
JEE Advanced
IMPORTANT
Earn 100

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 the new unit if light takes 8 min and 20 s to cover this distance?

Important Questions on Dimensions and Measurement

EASY
JEE Advanced
IMPORTANT
PHYSICS For Joint Entrance Examination JEE (Advanced) Mechanics I>Chapter 1 - Dimensions and Measurement>CONCEPT APPLICATION EXERCISE 1.1>Q 1
Radian is the unit of plane angle and it is a supplementary unit.
EASY
JEE Advanced
IMPORTANT
PHYSICS For Joint Entrance Examination JEE (Advanced) Mechanics I>Chapter 1 - Dimensions and Measurement>CONCEPT APPLICATION EXERCISE 1.1>Q 2
(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
PHYSICS For Joint Entrance Examination JEE (Advanced) Mechanics I>Chapter 1 - Dimensions and Measurement>CONCEPT APPLICATION EXERCISE 1.1>Q 3
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
PHYSICS For Joint Entrance Examination JEE (Advanced) Mechanics I>Chapter 1 - Dimensions and Measurement>CONCEPT APPLICATION EXERCISE 1.1>Q 4
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 _____: 
EASY
JEE Advanced
IMPORTANT
PHYSICS For Joint Entrance Examination JEE (Advanced) Mechanics I>Chapter 1 - Dimensions and Measurement>ILLUSTRATION 1.5
Convert newton to dyne.
EASY
JEE Advanced
IMPORTANT
PHYSICS For Joint Entrance Examination JEE (Advanced) Mechanics I>Chapter 1 - Dimensions and Measurement>ILLUSTRATION 1.6
Convert 1 J to ergs.
MEDIUM
JEE Advanced
IMPORTANT
PHYSICS For Joint Entrance Examination JEE (Advanced) Mechanics I>Chapter 1 - Dimensions and Measurement>ILLUSTRATION 1.7
Convert gravitational constant G from CGS to MKS system.
MEDIUM
JEE Advanced
IMPORTANT
PHYSICS For Joint Entrance Examination JEE (Advanced) Mechanics I>Chapter 1 - Dimensions and Measurement>ILLUSTRATION 1.8
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.