Question
The ratio between the numbers of girls and boys in a
class is 2:3 respectively. What is the percentage of girls in the class?ÂSolution
Required Percentage = 2/(2+3)  ×100 = 40%Â
A capacitor of 4 µF is charged to 100 V. It is then connected across an uncharged 2 µF capacitor. Final common voltage is:
When do spring tides occur?
Boyle’s Law is applicable to gases under which conditions?
Specific resistance of a conductor increases with :
A particle moving in a straight line with uniform acceleration covers distances 5 m, 9 m, and 13 m in the 1st, 2nd, and 3rd second of motion respectivel...
A plane mirror is placed on a wall. A man walks directly toward the mirror at 2 m/s. The speed at which his image approaches him is:
If a body of mass 5 kg is raised to 10 meters height, find its potential energy. (g = 9.8 m/s²) Â
Two point charges +q and −q are separated by a distance 2a. The electric field at a point on the perpendicular bisector at distance r from center is p...
Which metal is liquid at room temperature? Â
Ultrasonic pulse echo technique, a non-destructive ultrasonic testing, is employed for any possible flaw detection in a metallic bar of thickness 30 cm...
