A. once
B. twice
C. four time
D. eight time
Related Mcqs:
- Work done by variable force is determine by dividing____________________?
A. force into small interval
B. displacement into small interval
C. both force and displacement into small intervals
D. force into small and displacement into large intervals - The consumption of energy by a 60 watt bulb in 2 sec is_________________?
A. 120 J
B. 60 J
C. 30 J
D. 0.02 J - The escape velocity form the earth surface in km S-1 is____________________?
A. 4.2 km S-1
B. 7.5 km S-1
C. 9.5 km S-1
D. 1.1 km S-1 - The dot product of force and velocity is__________________?
A. power
B. work
C. impulse
D. torque - Slope of work time graph is equal to____________________?
A. displacement
B. acceleration
C. power
D. energy - Work done on the body equals to the _____________________?
A. change in its K.E always
B. change in its P.E always
C. change in its K.E and change in its P.E
D. neither change in K.E and nor change in its P.E - When two protons are brought together_____________________?
A. Kinetic energy increases
B. P.E. between them increases
C. P.E. between them decreases
D. P.E. between tem does not change - ________________ cells converts solar energy into electrical energy?
A. rotory
B. photovoltaic
C. galvanic
D. non of these - Force 100N is applied on a wire produces extension 5mm in it. Energy stored in it is
A. 0.125 J
B. 0.250 J
C. 0.50 J
D. 1 JSubmitted by: Huzaifa Naseer
- If the momentum of an object is increased twice, then what will be the kinetic energy?
A. Twice
B. Thrice
C. Four timesĀ
D. Sixteen timesSubmitted by: Imran Ali Mirbahar