Which of the following substances posses the highest elasticity ?
A. Rubber
B. Steel
C. Glass
D. Copper
Which of the following substances posses the highest elasticity ? Read More »
Physics
Biomass can be converted into fuels by
A. direct combustion
B. fermentation
C. both A and B
D. none of these
Biomass can be converted into fuels by Read More »
_______ cells converts solar energy into electrical energy?
A. rotory
B. photovoltaic
C. galvanic
D. non of these
_______ cells converts solar energy into electrical energy? Read More »
Geothermal energy is a _____ source of energy?
A. non-renewable
B. stable
C. renewable
D. none of the above
Geothermal energy is a _____ source of energy? Read More »
Propulsion force of a rocket is
A. non-conservative force
B. conservative force
C. both A and B
D. none of these
Propulsion force of a rocket is Read More »
The area under the force displacement graph represents
A. area
B. work done
C. power
D. none of these
The area under the force displacement graph represents Read More »
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
When two protons are brought together Read More »
The relation between the escape velocity V esc and orbital speed Vo is given by
A. V esc = 1/2Vo
B. V esc = -2 Vo
C. V esc = Vo
D. V esc = 2Vo
The relation between the escape velocity V esc and orbital speed Vo is given by Read More »
Work has the dimension as that of same as that of
A. torque
B. angular momentum
C. linear momentum
D. power
Work has the dimension as that of same as that of Read More »
One mega watt hour is equal to
A. 36 x 106 J
B. 36 x 1012 J
C. 36 x 109 J
D. 36 x 108 J
One mega watt hour is equal to Read More »