What is the work done when a force of 10 N moves an object by 5 m in the direction of the force? Â
A transistor works as an amplifier only when:
A constant retarding force of 60 N is applied to a body of mass 25 kg moving initially with a speed of 12 m s–1. How long does the body...
The mass of a star is two times the mass of the Sun. How it will come to an end?
Ultrasonic pulse echo technique, a non-destructive ultrasonic testing, is employed for any possible flaw detection in a metallic bar of thickness 30 cm...
The ratio of the total distance traveled by a body to the total time taken is its:
From the given options, the speed of sound is highest in which material?
Parsec is the unit of
Ultrasonic waves, propagating through a medium, can be detected by:
A spherical black body with a radius of 8 cm radiates 450-watt power at 500 K. If the radius were halved and the temperature doubled, the power radiated...
