If the unit of force is 100 N, unit of length is 10m and unit of time is 100 s, what is the unit of mass in this system of units ?
If the velocity of light is taken as the unit of velocity and year as the unit of time find the unit of length?
If year is taken as the unit of time and velocity of light as the unit of velocity what is the unit of length ?
Given the unit of power as 1 million erg/ min, the unit of force as 1000 dynes, unit of time as 1/10 s, what is the unit of mass and length.
(a) Define 1 watt. (b) State the commercial unit of electric energy. Express it in terms of SI unit of energy. (c) An electric refrigerator rated as 750 W operates 8 hours per day. What is the cost of the energy to operate it for the month of June at Rs. 2.50 per kWh ?
An electric refrigerator rated 400 W operates 8 hour//day . What is the cost of the energy to operate it for 30 days at Rs. 3.00 per kWh ?
If the unit of force is 1 kN, unit of length 1 km and unit of time is 100s, what will be the unit of mass?
If the units of force and length are doubled, then the unit of energy will be
Which one of the following is not a unit of British system of units?
If the unit of power is million erg/minute, the unit of force is 1000 dyne and the unit of length is 5/3 cm then the unit of time is (in second).
ICSE- WORK ENERGY AND POWER-EXERCISE-2(A) (MULTIPLE CHOICE TYPE )
